HypothesisTesting`
HypothesisTesting`

MeanTest

MeanTest[list,μ0]

performs a test with null hypothesis μ=μ0.

Details

  • To use MeanTest, you first need to load the Hypothesis Testing Package using Needs["HypothesisTesting`"].
  • MeanTest[list,μ0] gives a value for the test that the mean of the population from which list was sampled is significantly different from μ0.
  • If the variance is assumed known, MeanTest is based on the normal distribution.
  • If the variance is not assumed known, MeanTest is based on Student's distribution with Length[list]-1 degrees of freedom.
  • The following options can be given:
  • FullReportFalsewhether to include detailed information about a test
    KnownVarianceNonevariance of population
    SignificanceLevelNonesignificance level of the test
    TwoSidedFalsewhether to perform a two-sided test
  • With FullReport->True, MeanTest also returns the sample mean, the test statistic, and the distribution used to generate the -value.

Examples

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Basic Examples  (1)

A test of the population mean against 0:

Options  (4)

FullReport  (1)

A full report for a mean test:

KnownVariance  (1)

A test assuming the population variance is 5:

SignificanceLevel  (1)

A test at significance level .01:

TwoSided  (1)

A twosided mean test: