The protein ApoB is related to LDL ("bad cholesterol") and is important in fat metabolism. High levels of ApoB are related to cardiovascular disease. Suppose that mean fasting blood levels are 1000 units for men aged 40-59 in the United States, with a sigma of 200 units. You design a drug that you want to target to the top 5% of the population.

A. What level of ApoB does this correspond to?

B. What statistical test would you use to determine whether the mean ApoB cholesterol level among men aged 40-59 was 1000 units?

C. Please list two assumptions that you must make for the test given in Bto be appropriate.

D. State the null and alternative hypotheses for this statistical test.