org.statcato.statistics.inferential

Class ConfidenceInterval

java.lang.Object

org.statcato.statistics.inferential.ConfidenceInterval

Direct Known Subclasses:

CI2PopMeanSigmaKnown, CI2PopMeanSigmaUnknown, CI2PopProp, CIMatchedPairs, CIOnePopMeanSigmaKnown, CIOnePopMeanSigmaUnknown, CIOnePopProp

public abstract class ConfidenceInterval
extends java.lang.Object

Confidence interval class. This abstract class is the base class of all confidence interval objects. All classes extending the ConfidenceInterval class must implement the marginOfError and criticalValue methods.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
ConfidenceInterval()

Method Summary

Modifier and Type	Method and Description
double	center() Returns the center of the interval.
abstract double	criticalValue() Returns the critical value corresponding to the given confidence level.
double	lowerLimit() Returns the lower limit of the confidence interval.
abstract double	marginOfError() Returns the margin of error.
java.lang.String	toString() Returns a string representing the confidence interval (lower limit, upper limit).
double	upperLimit() Returns the upper limit of the confidence interval.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConfidenceInterval

public ConfidenceInterval()

Method Detail

marginOfError

public abstract double marginOfError()

Returns the margin of error.

Returns:

margin of error

criticalValue

public abstract double criticalValue()

Returns the critical value corresponding to the given confidence level.

Returns:

critical value

lowerLimit

public double lowerLimit()

Returns the lower limit of the confidence interval.

Returns:

lower limit

upperLimit

public double upperLimit()

Returns the upper limit of the confidence interval.

Returns:

upper limit

center

public double center()

Returns the center of the interval.

Returns:

center

toString

public java.lang.String toString()

Returns a string representing the confidence interval (lower limit, upper limit).

Overrides:

toString in class java.lang.Object

Returns:

string