In: Statistics and Probability
You and a team of scientists are interested in understanding whether your weight gain drug was useful to help underweight population to gain weight. For your sample of 25 people, their weight was measured before, and then post the drug administration. The difference in their weight, was measured and calculated by POST – PRE. The sample had an average difference of + 0.8 lbs, with a standard deviation of 1.5 lbs. Does your sample suggest that your weight gain drug was useful in helping underweight population gain weight? Test your hypothesis at 5% significance. a. Hypothesis and identify/calculate the critical value. (5pts) Ho: Ha: Critical Value: b. Calculate the statistics (10 pts) c. Conclusion (5pts)