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java.lang.Objectorg.statcato.statistics.inferential.HypothesisTest1MeanSigmaKnown
public class HypothesisTest1MeanSigmaKnown
A hypothesis test for 1 population mean, population standard deviation known.
| Constructor Summary | |
|---|---|
HypothesisTest1MeanSigmaKnown(int n,
double mu,
double sigma,
double confidenceLevel,
int testType)
Constructor. |
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| Method Summary | |
|---|---|
java.lang.String |
criticalValue()
Returns the critical value corresponding to the given confidence level and type of test. |
double |
pValue(double xBar)
Returns the p-value corresponding to xBar in a z distribution. |
double |
testStatistics(double xBar)
Returns the test statistics for the given sample mean xBar. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public HypothesisTest1MeanSigmaKnown(int n,
double mu,
double sigma,
double confidenceLevel,
int testType)
n - sample sizemu - hypothesized meansigma - population standard deviationconfidenceLevel - confidence leveltestType - (as defined in HypothesisTest)| Method Detail |
|---|
public double testStatistics(double xBar)
z = (xBar - mu) / (sigma / sqrt(n))
xBar - sample mean
public java.lang.String criticalValue()
HypothesisTestpublic double pValue(double xBar)
xBar - x bar value
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