dietitian wishes to see if a person’s cholesterol level will change if the diet is supplemented by a certain mineral. Five randomly selected subjects were pre-tested, and then they took the mineral...

dietitian wishes to see if a person’s cholesterol level will change if the diet is supplemented by a certain mineral. Five randomly selected subjects were pre-tested, and then they took the mineral supplement for a 6-week period. The Cholesterol level before and after taking the mineral supplements are shown in table below. (Cholesterol level is measured in milligrams per deciliter).

Subject:  1      2    3     4     5

Before: 207 210 190 172 225

After:    212 200 188 174 250

Extracted text: Calculate the standard deviation of the mean of the differences, you would find in hypothesis testing for Paired T test. (Do not test hypothesis.)