The NormTwoSample type exposes the following members.

Constructors

NameDescription
NormTwoSample
Constructor to compute statistics for mean and variance inferences using samples from two normal populations.

Methods

NameDescription
DowndateX
Removes the observations in x from the first sample.
DowndateY
Removes the observations in y from the second sample.
Equals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Finalize
Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection.
(Inherited from Object.)
GetHashCode
Serves as a hash function for a particular type.
(Inherited from Object.)
GetType
Gets the Type of the current instance.
(Inherited from Object.)
MemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
ToString
Returns a String that represents the current Object.
(Inherited from Object.)
Update
Concatenates samples x and y to the samples provided in the constructor.
UpdateX
Concatenates the values in x to the first sample provided in the constructor.
UpdateY
Concatenates the values in y to the second sample provided in the constructor.

Properties

NameDescription
ChiSquaredTest
The test statistic associated with the chi-squared test for common, or pooled, variances.
ChiSquaredTestDF
The degrees of freedom associated with the chi-squared test for the common, or pooled, variances.
ChiSquaredTestNull
The null hypothesis value for the chi-squared test.
ChiSquaredTestP
The probability of a larger chi-squared associated with the chi-squared test for common, or pooled, variances.
ConfidenceMean
The confidence level (in percent) for a two-sided interval estimate of the mean of x - the mean of y, in percent.
ConfidenceVariance
The confidence level (in percent) for two-sided interval estimate of the variances.
DiffMean
The difference of means for the two samples.
FTest
The F test value of the F test for equality of variances.
FTestDFdenominator
The denominator degrees of freedom of the F test for equality of variances.
FTestDFnumerator
The numerator degrees of freedom of the F test for equality of variances.
FTestP
The probability of a larger F in absolute value for the F test for equality of variances, assuming equal variances.
LowerCICommonVariance
The lower confidence limits for the common, or pooled, variance.
LowerCIDiff
The lower confidence limit for the mean of the first population minus the mean of the second for equal or unequal variances.
LowerCIRatioVariance
The approximate lower confidence limit for the ratio of the variance of the first population to the second.
MeanX
The mean of the first sample, x.
MeanY
The mean of the second sample, y.
PooledVariance
The Pooled variance for the two samples.
StdDevX
The standard deviation of the first sample, x.
StdDevY
The standard deviation of the second sample, y.
TTest
The test statistic for the Satterthwaite's approximation for equal or unequal variances.
TTestDF
The degrees of freedom for the Satterthwaite's approximation for t-test for either equal or unequal variances.
TTestNull
The Null hypothesis value for t-test for the mean.
TTestP
The approximate probability of a larger t for the Satterthwaite's approximation for equal or unequal variances.
UnequalVariances
Specifies whether to return statistics based on equal or unequal variances.
UpperCICommonVariance
The upper confidence limits for the common, or pooled, variance.
UpperCIDiff
The upper confidence limit for the mean of the first population minus the mean of the second for equal or unequal variances.
UpperCIRatioVariance
The approximate upper confidence limit for the ratio of the variance of the first population to the second.

See Also