Calculate the chi square statistic.?2 = Short answer, 5 points each.

Why does the tobt change when we use dependent v. independent samples t-tests?__________________________________________________________________________________________________________________________________

Why does the tcrit change when we use dependent v. independent samples t-tests?__________________________________________________________________________________________________________________________________

How can we figure out how many people we have in a sample, given a specific degrees of freedom? Answer for both independent and dependent samples tests.____________________________________________________________________________________________________________________________

Which is preferable, a dependent samples test or an independent samples? Give two reasons why.___________________________________________________________________________________________________________________

Explain pooled variance._________________________________________________________________________________________________________

Given the choice, we won’t use the chi-square test. What’s so wrong with it? What are the assumptions associated with the chi-square?__________________________________________________________________________________________________________________________________

Extra credit.

Why do we care about homogeneity of variance?__________________________________________________________________________________________________________________________________