Hypothesis Testing 4--Chi-Square for Goodness of Fit Tests and Independence In Hypothesis Testing 1, 2 and 3, you have used normal and t-distributions to test hypotheses. Chi-Square tests use the ...

Hypothesis testing in business examples might include a restaurant owner interested in how adding additional house sauce to their chicken sandwich impacts customer satisfaction.

A Tutorial In T-Tests and ANOVA using JMP A Tutorial In T-Tests and ANOVA using JMP Course Topics This short course provides an overview of statistical analyses useful for comparing the means for one ...

Learn what a t-test is and discover the five standard assumptions made regarding the validity of sampling and data used in a t-test.

A t-test for a population mean tests the population mean against a hypothesized value. It is appropriate when the population standard deviation is unknown and the sample size is small. This applet ...

For example, suppose 1000 hypothesis tests have been carried out by permutation test in a sample of 120 subjects with negative results. The 1000 test sample size multiplier at 80% power is 3.062.

In the analysis of microarray data, and in some other contemporary statistical problems, it is not uncommon to apply hypothesis tests in a highly simultaneous way. The number, N say, of tests used can ...

This paper evaluates a nonparametric sign test for abnormal security price performance in event studies. The sign test statistic examined here does not require a symmetrical distribution of security ...