/*
* HyTestConclusionDialog.java
*
* Created on September 25, 2008, 9:47 AM
*/
package org.statcato.dialogs.stat.hytest;
import org.statcato.*;
import javax.swing.*;
/**
* Dialog for hypothesis test conclusion tool. Allows user to specify original
* claim and choose a method for rejecting null hypothesis. Provides
* wording of a final conclusion.
*
* @author Margaret Yau
* @version %I%, %G%
* @since 1.0
*/
public class HyTestConclusionDialog extends StatcatoDialog {
private static final int LESS = 0;
private static final int LESSEQ = 1;
private static final int GREATER = 2;
private static final int GREATEREQ = 3;
private static final int EQUAL = 4;
private static final int NEQUAL = 5;
private static final int LEFTTAIL = 0;
private static final int RIGHTTAIL = 1;
private static final int TWOTAIL = 2;
private int tail = -1;
private String claim = "";
private String h0 = "";
private String h1 = "";
private String parameter; // for original claim
private int condition; // for original claim
private double value; // for original claim
/** Creates new form HyTestConclusionDialog */
public HyTestConclusionDialog(java.awt.Frame parent, boolean modal) {
super(parent, modal);
this.app = (Statcato)parent;
this.ParentSpreadsheet = app.getSpreadsheet();
initComponents();
ButtonGroup group = new ButtonGroup();
group.add(TradRadioButton);
group.add(PValueRadioButton);
getRootPane().setDefaultButton(Next1Button);
RejectPanel.setVisible(false);
ConclusionPanel.setVisible(false);
GraphPanel.setVisible(false);
setHelpFile("stat-hytest-conc");
name = "Hypothesis Test Conclusion Tool";
description = "For determining the conclusion of a hypothesis test " +
"using the traditional or p-value approaches.";
helpStrings.add("Enter the original claim of the hypothesis test.");
helpStrings.add("Enter the critial value and test statistic if " +
"using the traditional approach.");
helpStrings.add("Enter the significance and p-value if using " +
"the p-value approach.");
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// //GEN-BEGIN:initComponents
private void initComponents() {
ClearButton = new javax.swing.JButton();
CancelButton = new javax.swing.JButton();
ClaimPanel = new javax.swing.JPanel();
ParamComboBox1 = new javax.swing.JComboBox();
jLabel11 = new javax.swing.JLabel();
jLabel12 = new javax.swing.JLabel();
ConditionalComboBox1 = new javax.swing.JComboBox();
ClaimValueTextField1 = new javax.swing.JTextField();
jLabel13 = new javax.swing.JLabel();
TailLabel = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
Next1Button = new javax.swing.JButton();
RejectPanel = new javax.swing.JPanel();
jLabel6 = new javax.swing.JLabel();
jLabel7 = new javax.swing.JLabel();
jLabel8 = new javax.swing.JLabel();
TSTextField = new javax.swing.JTextField();
CVTextField = new javax.swing.JTextField();
TradRadioButton = new javax.swing.JRadioButton();
PValueRadioButton = new javax.swing.JRadioButton();
SigLabel = new javax.swing.JLabel();
PValueLabel = new javax.swing.JLabel();
PValueTextField = new javax.swing.JTextField();
SigTextField = new javax.swing.JTextField();
H0Label = new javax.swing.JLabel();
Next2Button = new javax.swing.JButton();
ConclusionPanel = new javax.swing.JPanel();
ConclusionLabel = new javax.swing.JLabel();
GraphPanel = new javax.swing.JPanel();
GraphLabel = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
setTitle("Hypothesis Test: Reaching a Conclusion");
ClearButton.setText("Clear");
ClearButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
ClearButtonActionPerformed(evt);
}
});
CancelButton.setText("Cancel");
CancelButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
CancelButtonActionPerformed(evt);
}
});
ClaimPanel.setBorder(javax.swing.BorderFactory.createTitledBorder("Original Claim"));
ParamComboBox1.setEditable(true);
ParamComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "mean ", "proportion", "variance", "standard deviation", "" }));
jLabel11.setText("Parameter");
jLabel12.setText("Condition");
ConditionalComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "<≤", ">", "≥", "=", "≠" }));
ConditionalComboBox1.addItemListener(new java.awt.event.ItemListener() {
public void itemStateChanged(java.awt.event.ItemEvent evt) {
ConditionalComboBox1ItemStateChanged(evt);
}
});
ClaimValueTextField1.setText("0");
jLabel13.setText("Parameter name is editable if desired name is not
\navailable in the drop-down menu.
\nExamples of claims: mean < 5, proportion = 0.4,
\nvariance > 2.3, standard deviation ≠ 1.2");
jLabel2.setText("Value");
Next1Button.setText("Next >>");
Next1Button.setToolTipText("Next >>");
Next1Button.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
Next1ButtonActionPerformed(evt);
}
});
javax.swing.GroupLayout ClaimPanelLayout = new javax.swing.GroupLayout(ClaimPanel);
ClaimPanel.setLayout(ClaimPanelLayout);
ClaimPanelLayout.setHorizontalGroup(
ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(ParamComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel11))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addComponent(jLabel12)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jLabel2))
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addGap(4, 4, 4)
.addComponent(ConditionalComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(ClaimValueTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addComponent(Next1Button)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(TailLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 150, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jLabel13, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(60, Short.MAX_VALUE))
);
ClaimPanelLayout.setVerticalGroup(
ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ClaimPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel11)
.addComponent(jLabel12)
.addComponent(jLabel2))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(ParamComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(ClaimValueTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(ConditionalComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel13, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(ClaimPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(Next1Button)
.addComponent(TailLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 22, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap(12, Short.MAX_VALUE))
);
RejectPanel.setBorder(javax.swing.BorderFactory.createTitledBorder("Hypotheses and Sample Statistics"));
jLabel6.setText("Select method:");
jLabel7.setText("Critical Value:");
jLabel8.setText("Test Statistic:");
TradRadioButton.setSelected(true);
TradRadioButton.setText("Traditional Method:");
TradRadioButton.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
TradRadioButtonStateChanged(evt);
}
});
PValueRadioButton.setText("p-Value Method:");
PValueRadioButton.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
PValueRadioButtonStateChanged(evt);
}
});
SigLabel.setText("Significance:");
PValueLabel.setText("p-Value:");
PValueTextField.setEnabled(false);
SigTextField.setEnabled(false);
H0Label.setText("Null Hypothesis:");
Next2Button.setText("Next >>");
Next2Button.setToolTipText("Next >>");
Next2Button.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
Next2ButtonActionPerformed(evt);
}
});
javax.swing.GroupLayout RejectPanelLayout = new javax.swing.GroupLayout(RejectPanel);
RejectPanel.setLayout(RejectPanelLayout);
RejectPanelLayout.setHorizontalGroup(
RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(RejectPanelLayout.createSequentialGroup()
.addContainerGap()
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(RejectPanelLayout.createSequentialGroup()
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(RejectPanelLayout.createSequentialGroup()
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel7)
.addComponent(jLabel8))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(TSTextField)
.addComponent(CVTextField, javax.swing.GroupLayout.DEFAULT_SIZE, 64, Short.MAX_VALUE)))
.addComponent(TradRadioButton))
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(RejectPanelLayout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(SigLabel)
.addComponent(PValueLabel))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(PValueTextField)
.addComponent(SigTextField, javax.swing.GroupLayout.DEFAULT_SIZE, 59, Short.MAX_VALUE)))
.addGroup(RejectPanelLayout.createSequentialGroup()
.addGap(18, 18, 18)
.addComponent(PValueRadioButton))))
.addGroup(RejectPanelLayout.createSequentialGroup()
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(H0Label)
.addComponent(jLabel6)
.addComponent(Next2Button))
.addGap(0, 0, Short.MAX_VALUE)))
.addContainerGap())
);
RejectPanelLayout.setVerticalGroup(
RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(RejectPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(H0Label)
.addGap(72, 72, 72)
.addComponent(jLabel6)
.addGap(18, 18, 18)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(TradRadioButton)
.addComponent(PValueRadioButton))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(CVTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel7)
.addComponent(SigTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(SigLabel))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(RejectPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(TSTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel8)
.addComponent(PValueTextField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(PValueLabel))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(Next2Button)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
ConclusionPanel.setBorder(javax.swing.BorderFactory.createTitledBorder("Conclusion"));
ConclusionLabel.setText("conclusion");
javax.swing.GroupLayout ConclusionPanelLayout = new javax.swing.GroupLayout(ConclusionPanel);
ConclusionPanel.setLayout(ConclusionPanelLayout);
ConclusionPanelLayout.setHorizontalGroup(
ConclusionPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(ConclusionPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(ConclusionLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 357, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(18, Short.MAX_VALUE))
);
ConclusionPanelLayout.setVerticalGroup(
ConclusionPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, ConclusionPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(ConclusionLabel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
);
GraphPanel.setBorder(javax.swing.BorderFactory.createTitledBorder("Type of Test"));
javax.swing.GroupLayout GraphPanelLayout = new javax.swing.GroupLayout(GraphPanel);
GraphPanel.setLayout(GraphPanelLayout);
GraphPanelLayout.setHorizontalGroup(
GraphPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, GraphPanelLayout.createSequentialGroup()
.addContainerGap()
.addComponent(GraphLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 365, Short.MAX_VALUE)
.addContainerGap())
);
GraphPanelLayout.setVerticalGroup(
GraphPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(GraphPanelLayout.createSequentialGroup()
.addComponent(GraphLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 242, Short.MAX_VALUE)
.addContainerGap())
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(6, 6, 6)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(ClaimPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(RejectPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(ClearButton)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(GraphPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(ConclusionPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(CancelButton))
.addContainerGap())
);
layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {CancelButton, ClearButton});
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(ClaimPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(RejectPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addComponent(GraphPanel, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(ConclusionPanel, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 48, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(CancelButton)
.addComponent(ClearButton)))
);
pack();
}// //GEN-END:initComponents
private void Next1ButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_Next1ButtonActionPerformed
parameter = "";
value = 0;
constructHypotheses();
getRootPane().setDefaultButton(Next2Button);
RejectPanel.setVisible(true);
GraphPanel.setVisible(true);
pack();
}//GEN-LAST:event_Next1ButtonActionPerformed
private void constructHypotheses() {
// get parameter name
String selected = (String) ParamComboBox1.getSelectedItem();
if (selected.equals("")) {
app.showErrorDialog("Enter the paramter name or select " +
"one in the paramter list.");
return;
}
else
parameter = selected;
// get condition
condition = ConditionalComboBox1.getSelectedIndex();
setTestType(condition);
String conditionString = convertConditionToString(condition);
// get value
try {
value = Double.parseDouble(ClaimValueTextField1.getText());
}
catch (NumberFormatException e) {
app.showErrorDialog("Enter a number for hypothesized value in " +
"the original claim");
return;
}
conditionString = convertConditionToString(condition);
claim = parameter + " " + conditionString + " " + value;
h0 = parameter + " = " + value;
h1 = parameter + " " +
convertConditionToString(returnAlternativeCondition(condition))
+ " " + value;
H0Label.setText("Claim: " + claim + "
" +
"Null Hypothesis: " + h0 + "
" +
"Alternative Hypothesis: " + h1 + "");
}
private void setTestType(int condition) {
switch (condition) {
case LESS:
tail = LEFTTAIL; break;
case LESSEQ:
tail = RIGHTTAIL; break;
case GREATER:
tail = RIGHTTAIL; break;
case GREATEREQ:
tail = LEFTTAIL; break;
case EQUAL:
tail = TWOTAIL; break;
case NEQUAL:
tail = TWOTAIL; break;
}
// print type of test
if (tail == LEFTTAIL) {
TailLabel.setText("Left tail test");
ImageIcon icon = app.createImageIcon("normal-ltt.gif", "ltt");
GraphLabel.setIcon(icon);
}
else if (tail == RIGHTTAIL) {
TailLabel.setText("Right tail test");
ImageIcon icon = app.createImageIcon("normal-rtt.gif", "ltt");
GraphLabel.setIcon(icon);
}
else {
TailLabel.setText("Two tail test");
ImageIcon icon = app.createImageIcon("normal-ttt.gif", "ltt");
GraphLabel.setIcon(icon);
}
}
/**
* Return a string of HTML code representing the given condition.
*
* @param condition comparison condition (LESS, LESSEQ, GREATER, GREATEREQ,
* EQUAL, NEQUAL)
* @return HTML string
*/
private String convertConditionToString(int condition) {
switch (condition) {
case LESS: return "<";
case LESSEQ: return "≤";
case GREATER: return ">";
case GREATEREQ: return "≥";
case EQUAL: return "=";
case NEQUAL: return "≠";
}
return "";
}
/**
* Return the comparison condition of the alternative hypothesis given the
* condition of the claim
*
* @param condition (LESS, LESSEQ, GREATER, GREATEREQ,
* EQUAL, NEQUAL)
* @return condition of the null
*/
private int returnAlternativeCondition(int condition) {
switch (condition) {
case LESS: return LESS;
case LESSEQ: return GREATER;
case GREATER: return GREATER;
case GREATEREQ: return LESS;
case EQUAL: return NEQUAL;
case NEQUAL: return NEQUAL;
}
return -1;
}
private void TradRadioButtonStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_TradRadioButtonStateChanged
if (TradRadioButton.isSelected()) {
CVTextField.setEnabled(true);
TSTextField.setEnabled(true);
}
else {
CVTextField.setEnabled(false);
TSTextField.setEnabled(false);
}
}//GEN-LAST:event_TradRadioButtonStateChanged
private void PValueRadioButtonStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_PValueRadioButtonStateChanged
if (PValueRadioButton.isSelected()) {
SigTextField.setEnabled(true);
PValueTextField.setEnabled(true);
}
else {
SigTextField.setEnabled(false);
PValueTextField.setEnabled(false);
}
}//GEN-LAST:event_PValueRadioButtonStateChanged
private void Next2ButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_Next2ButtonActionPerformed
Next1ButtonActionPerformed(null);
boolean rejectNull = false;
if (TradRadioButton.isSelected()) {
// traditional method
// read input values
try {
double CV = Double.parseDouble(CVTextField.getText());
double TS = Double.parseDouble(TSTextField.getText());
if (tail == RIGHTTAIL) {
if (TS >= CV)
rejectNull = true;
else
rejectNull = false;
}
else if (tail == LEFTTAIL) {
if (TS <= CV)
rejectNull = true;
else
rejectNull = false;
}
else { // two tail
if (Math.abs(TS) >= Math.abs(CV))
rejectNull = true;
else
rejectNull = false;
}
}
catch (NumberFormatException e) {
app.showErrorDialog("Enter valid numbers for the critical " +
"value and test statistic.");
return;
}
}
else {
// p-Value method
// read input values
try {
double significance = Double.parseDouble(SigTextField.getText());
double pvalue = Double.parseDouble(PValueTextField.getText());
if (pvalue <= significance)
rejectNull = true;
else
rejectNull = false;
}
catch (NumberFormatException e) {
app.showErrorDialog("Enter valid numbers for the " +
"significance and p-Value.");
return;
}
}
// make conclusion
String text = "";
if (rejectNull)
text += "Reject null hypothesis.
";
else
text += "Fail to reject null hypothesis.
";
condition = ConditionalComboBox1.getSelectedIndex();
if (condition == EQUAL || condition == LESSEQ || condition == GREATEREQ) {
// original claim contains equality
if (rejectNull)
text += "This is sufficient evidence to warrant rejection " +
"of the claim that ";
else
text += "There is not sufficient evidence to warrant rejection " +
"of the claim that ";
}
else {
// original claim does not contain equality
if (rejectNull)
text += "The sample data support the claim that ";
else
text += "There is not sufficient evidence to support the claim that ";
}
text += claim + ".";
ConclusionLabel.setText(text);
ConclusionPanel.setVisible(true);
pack();
}//GEN-LAST:event_Next2ButtonActionPerformed
private void ClearButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_ClearButtonActionPerformed
ParamComboBox1.setSelectedIndex(0);
ConditionalComboBox1.setSelectedIndex(0);
ClaimValueTextField1.setText("0");
CVTextField.setText("");
TSTextField.setText("");
SigTextField.setText("");
PValueTextField.setText("");
RejectPanel.setVisible(false);
ConclusionPanel.setVisible(false);
GraphPanel.setVisible(false);
pack();
}//GEN-LAST:event_ClearButtonActionPerformed
private void CancelButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_CancelButtonActionPerformed
setVisible(false);
}//GEN-LAST:event_CancelButtonActionPerformed
private void ConditionalComboBox1ItemStateChanged(java.awt.event.ItemEvent evt) {//GEN-FIRST:event_ConditionalComboBox1ItemStateChanged
condition = ConditionalComboBox1.getSelectedIndex();
setTestType(condition);
}//GEN-LAST:event_ConditionalComboBox1ItemStateChanged
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JTextField CVTextField;
private javax.swing.JButton CancelButton;
private javax.swing.JPanel ClaimPanel;
private javax.swing.JTextField ClaimValueTextField1;
private javax.swing.JButton ClearButton;
private javax.swing.JLabel ConclusionLabel;
private javax.swing.JPanel ConclusionPanel;
private javax.swing.JComboBox ConditionalComboBox1;
private javax.swing.JLabel GraphLabel;
private javax.swing.JPanel GraphPanel;
private javax.swing.JLabel H0Label;
private javax.swing.JButton Next1Button;
private javax.swing.JButton Next2Button;
private javax.swing.JLabel PValueLabel;
private javax.swing.JRadioButton PValueRadioButton;
private javax.swing.JTextField PValueTextField;
private javax.swing.JComboBox ParamComboBox1;
private javax.swing.JPanel RejectPanel;
private javax.swing.JLabel SigLabel;
private javax.swing.JTextField SigTextField;
private javax.swing.JTextField TSTextField;
private javax.swing.JLabel TailLabel;
private javax.swing.JRadioButton TradRadioButton;
private javax.swing.JLabel jLabel11;
private javax.swing.JLabel jLabel12;
private javax.swing.JLabel jLabel13;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel6;
private javax.swing.JLabel jLabel7;
private javax.swing.JLabel jLabel8;
// End of variables declaration//GEN-END:variables
}
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