# Calcium Supplements

Sample data was collected in a study of calcium supplements and their effects on blood pressure. A placebo group and a calcium group began the study with blood pressure measurement. At a 0.05 significance level, test the claim that the 2 sample groups come from populations with the same mean.

Placebo mean: 114.6538, standard deviation 9.4601

Calcium mean: 118.56, standard deviation 8.5874.

https://brainmass.com/statistics/dispersion-and-spread-of-data/calcium-supplements-6378

#### Solution Preview

In this problem you should give the sizes of both samples. Assume that they are n1, n2 for Placebo and Calcium respectively. Let X and Y be random variables. By the hypothesis, X~N(u,b^2), Y~N(u,c^2). So the sample ...

#### Solution Summary

Sample data was collected in a study of calcium supplements and their effects on blood pressure. A placebo group and a calcium group began the study with blood pressure measurement. At a 0.05 significance level, test the claim that the 2 sample groups come from populations with the same mean.

Placebo mean: 114.6538, standard deviation 9.4601

Calcium mean: 118.56, standard deviation 8.5874.