Question: The water diet requires on to drink two cups of water every half hour from when one gets up until one goes to bed, but otherwise allows one to eat whatever one likes. Five adult volunteers agree to test the diet. They are weighted prior to beginning the diet and after six weeks on the diet. The weights in pounds are:

Pearson 1 2 3 4 5

Weight before the diet 180 125 240 150 170

Weights after six months 170 130 215 152 163

All the data is normally distributed. To determine the weight loss what are the hypotheses? Based on these data what will be your test statistic and p-value? What is your conclusion? Write it in a simple statement.

Which one of these is 95% confidence interval for µ based on these data is:

a. 7±21.70 b. 7±13.64 c. 7±6.82 d. 7±4.00