The p-value depends on the sample size, the test statistic and the spread (usually standard deviation) of the samples. Let’s return to the example above. Our null hypothesis is: “The mean module mark ...

and the rejection region for a hypothesis test. Give the form of a rejection region. Perform tests concerning a true population variance. Compute the sampling distributions for the sample mean and ...

The one-sided alternatives are that the difference is greater than, or less than, the difference specified in the null hypothesis. To specify a box-and-whisker plot and a means plot in addition to the ...