Question 1

To test for significant differences in waiting times at pairs of hospitals, the hospital network conducted Tukey's Test (see below). Which pairs of hospitals have significantly different waiting times at the alpha=0.05 level? (Select ALL answers that apply)

Tukey's Test for Simultaneous Comparison Hospital A Hospital B Hospital C Hospital D Hospital A Hospital B 2.693 Hospital C 1.123 1.833 Hospital D 1.989 4.665 3.847 alpha 0.05 0.01 critical value 3.791 4.695 None of them are significantly different Hospital A is significantly different from Hospital B O Hospital A is significantly different from Hospital C O Hospital A is significantly different from Hospital D Hospital B is significantly different from Hospital C Hospital B is significantly different from Hospital D O Hospital C is significantly different from Hospital D