One Sample ZTest 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#
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23
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
One | Constructs a new OneSampleZTest. |
One | Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation. |
One | Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation. |
One | Constructs a new OneSampleZTest for the specified Vector<T> with known standard deviation. |
One | 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) |
Hypothesis |
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) |
Population | Gets or sets the mean of the population from which the sample was drawn. |
Population | 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>) |
Sample | Gets or sets the mean of the sample. |
Sample | Gets or sets the size of the sample. |
Significance |
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
Equals | Determines whether the specified object is equal to the current object. (Inherited from Object) |
Get |
Returns the confidence interval for the test parameter for the default confidence level.
(Inherited from HypothesisTest) |
Get |
Returns the confidence interval for the mean corresponding to the specified confidence level.
(Overrides HypothesisTest.GetConfidenceInterval(Double)) |
GetHashCode | Serves as the default hash function. (Inherited from Object) |
Get |
Gets the lower critical value for the hypothesis test's current significance level.
(Inherited from HypothesisTest) |
Get |
Gets the lower critical value for the hypothesis test at the specified significance level.
(Inherited from HypothesisTest) |
Get |
Gets the probability that the test statistic would take on the calculated value under the specified alternate hypothesis.
(Inherited from HypothesisTest) |
GetType | Gets the Type of the current instance. (Inherited from Object) |
Get |
Gets the upper critical value for the test statistic at the hypothesis test's current significance level.
(Inherited from HypothesisTest) |
Get |
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( |
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( |
Returns a string containing a human-readable summary of the object
using the specified options.
(Inherited from OneSampleTest<T>) |
ToString | Returns a string that represents the current object. (Inherited from HypothesisTest) |