Construct and interpret confidence intervals for one and two population means, one and two population proportions, and a population variance. In this module you will learn how to estimate parameters ...

Variance: An Overview Standard deviation and variance are two basic mathematical concepts that have an important place in ...

Define a test statistic, level of significance, and the rejection region for a hypothesis test. Give the form of a rejection region. Perform tests concerning a true population variance. Compute the ...