Hypothesis Testing and Confidence Intervals for Proportions andHypothesis Test for Difference between Two Means
A pharmaceutical company is testing a new cold medicine todetermine if the drug has side affects. To test the drug, 8patients are given the drug and 9 patients are given a placebo(sugar pill). The change in blood pressure after taking the pillwas as follows:
Given drug: 3 4 5 1 -2 3 5 6
Given placebo: 1 -1 2 7 2 3 0 3 4
Test to determine if the drug raises patients’ blood pressuremore than the placebo using ? = 0.01
