Question 1

A new drug is proposed to lower total cholesterol for pregnant women, and a study was conducted to examine the efficacy of the new drug in lowering cholesterol. 15 pregnant women participated in the study, and each was asked to take the new drug for 6 weeks. At the start of the study, each pregnant women's cholesterol level was measured and, after taking the new drug for 6 weeks, as shown in the data below.

Patient Baseline (At At 6 number the start) Weeks 215 205 190 156 230 190 220 180 214 201 240 227 210 197 193 173 210 204 230 217 11 180 142 12 260 260 210 207 14 184 184 15 200 193