Regression analyses allows us to conduct tests of independence between two numerical variables based on the null hypothesis that the ______ is equal to 0. A) Slope B) y-intercept

When we perform a test of independence between two indicator variables, our null hypothesis states that deltapie _________. A) Is negative B) does not equal 0 C) is positive D) equals 0

The success-failure condition helps us to decide whether a normal approximation of the sampling distribution of proportions is reliable A) True B) False

If a null hypothesis is stated as an equality, we should perform a one-tailed test. A) True B) False

We can and should calculate the critical value of a test statistic before we have collected or summarized data for a null hypothesis test. A) True B) False

No explanations needed :)