Question: Sample data were collected in a study of calcium supplements and their effects on blood pressure. A placebo group and a calcium group began the

Sample data were collected in a study of calcium supplements and their effects on blood pressure. A placebo group and a calcium group began the study with measures of blood pressures. At the 0.05 significance level, test the claim that the two sample groups come from populations with the same blood pressure levels.

Use the Wilcoxon rank-sum test.

Placebo Group Calcium Group 124.6 104.8 965116.3 106. 128.8 07.2 123.1 118.1 108.5 20.4 22.5 113.6 129.1 123.4 1027 118.1 114.7 120.9 104.4 116.3 109.6 7.7 108.0 124.3 106.6 1214 113.2

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