Question 4 1 Point If the test statistic falls into the rejection region, we A Reject Ho B Retain Ha C Accept Ho D Reject Ha Question 5 1 Point Using R commands, how would you calculate the t-value for which 95%% of the data lies below for a t-distribution with 14 degrees of freedom? A pt(0.95,14) B qt(0.95,14) C dt (0.95, 14) D rt(0.95,14) Question 6 1 Point When are paired sampling techniques more preferable to independent sampling techniques? When the degrees of freedom will be greatly increased. B When the variances are approximately equal to zero. C When it is anticipated that the variability in an experiment can be redcued. D When the samples are clearly independent