Q. When 40 people used Weight Watchers diet for one year, their mean weight loss was 3.0 lb and the standard deviation was 4.9 lb. use a 0.01 significance level to test the claim which the mean weight loss is greater than 0 lb.
Q. Find out at least two reasons for studying trade ethics and analyze the development of trade ethics since the 1960s and postulate illustrate what issues will be at the heart of trade ethics ten (10) years from now. Explain your rationale. (150-200 words)