Which of the following is used to check the equality of proportions for 2 populationsQuestion 16Answera.ANOVAb.t-testc.f-testd.z-test

When testing the difference between two population proportions, a t test may be used.Group of answer choicesTrueFalse

For testing the difference between two population proportions, the pooled proportion estimate should be used to compute the value of the test statistic when the:Group of answer choicespopulations are normally distributed.sample sizes are large enough.null hypothesis states that the first population proportion is half of the second.null hypothesis states that the two population proportions are equal.

Testing for the equality of two population means is the same as testing for the difference between two population means.Group of answer choicesTrueFalse PreviousNext

In order to determine whether or not the means of two populations are equal,Group of answer choiceseither a t test or an analysis of variance can be performedan analysis of variance must be performeda t test must be performedan r test must be performed

n a city A, 20% of a random sample of 900 school boys had a certain slight physical defect. In anothercity B, 18.5% of a random sample of 1600 school boys had the same defect. Is the difference betweenthe proportions significant?