c. What can we conclude about Health science majors? 4. Assume that no change in diet over a 3 month period results in no weight loss, with a standard deviation of 2 Ibs. A sample of 20 people on a certain diet loses an average of 3 lbs. a. List all the relevant variables and their values. b. What is the probability of the sample weight loss (or more) being by chance? c. Can we say the diet is working