OneSampleZTest Class

Represents a test that the population population mean of a Vector<T> is equal to a specific value when the population variance is known.

Definition

Namespace: Extreme.Statistics.Tests
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
C#
public sealed class OneSampleZTest : OneSampleTest
Inheritance
Object  →  HypothesisTest  →  OneSampleTest<Double>  →  OneSampleTest  →  OneSampleZTest

Remarks

Use the OneSampleZTest class to test the hypothesis that a sample comes from a normal population with specified population mean and variance.

The sample data can be supplied either as a Vector<T>, or by specifying the SampleMean and the SampleSize.

A confidence interval for the variance of the sample can be obtained using the GetConfidenceInterval(Double) method.

When the population variance is not known, a OneSampleTTest can be used. To compare two sample means, use a TwoSampleTTest.

Constructors

OneSampleZTest() Constructs a new OneSampleZTest.
OneSampleZTest(Vector<Double>, Double, Double) Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation.
OneSampleZTest(Double, Int32, Double, Double) Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation.
OneSampleZTest(Vector<Double>, Double, Double, HypothesisType) Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation.
OneSampleZTest(Double, Int32, Double, Double, HypothesisType) Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation.

Properties

Distribution Gets the probability distribution used in the hypothesis test.
(Inherited from HypothesisTest)
HypothesisType Gets or sets whether the test is one or two-tailed.
(Inherited from HypothesisTest)
Name Gets the name of the hypothesis test.
(Overrides HypothesisTest.Name)
PopulationMean Gets or sets the mean of the population from which the sample was drawn.
PopulationStandardDeviation Gets or sets the standard deviation of the population from which the sample was drawn.
PValue Gets the probability that the test statistic would take on the calculated value under the alternate hypothesis.
(Inherited from HypothesisTest)
Sample Gets or sets the variable the test is to be applied to.
(Inherited from OneSampleTest<T>)
SampleMean Gets or sets the mean of the sample.
SampleSize Gets or sets the size of the sample.
SignificanceLevel Gets the significance level used to test the null hypothesis.
(Inherited from HypothesisTest)
Statistic Gets the value of the test statistic.
(Inherited from HypothesisTest)

Methods

EqualsDetermines whether the specified object is equal to the current object.
(Inherited from Object)
GetConfidenceInterval() Returns the confidence interval for the test parameter for the default confidence level.
(Inherited from HypothesisTest)
GetConfidenceInterval(Double) Returns the confidence interval for the mean corresponding to the specified confidence level.
(Overrides HypothesisTest.GetConfidenceInterval(Double))
GetHashCodeServes as the default hash function.
(Inherited from Object)
GetLowerCriticalValue() Gets the lower critical value for the hypothesis test's current significance level.
(Inherited from HypothesisTest)
GetLowerCriticalValue(Double) Gets the lower critical value for the hypothesis test at the specified significance level.
(Inherited from HypothesisTest)
GetPValue Gets the probability that the test statistic would take on the calculated value under the specified alternate hypothesis.
(Inherited from HypothesisTest)
GetTypeGets the Type of the current instance.
(Inherited from Object)
GetUpperCriticalValue() Gets the upper critical value for the test statistic at the hypothesis test's current significance level.
(Inherited from HypothesisTest)
GetUpperCriticalValue(Double) Gets the upper critical value for the test statistic at the specified significance level.
(Inherited from HypothesisTest)
Reject() Returns whether the null hypothesis is rejected using the default significance level.
(Inherited from HypothesisTest)
Reject(Double) Returns whether the null hypothesis is rejected using the specified significance level.
(Inherited from HypothesisTest)
Summarize() Returns a string containing a human-readable summary of the object.
(Inherited from HypothesisTest)
Summarize(SummaryOptions) Returns a string containing a human-readable summary of the object using the specified options.
(Inherited from OneSampleTest<T>)
ToStringReturns a string that represents the current object.
(Inherited from HypothesisTest)

See Also