Each answer will be given equal weight. Turn in enough work so that I can tell how you obtained your answer. A correct numerical answer or a correct one-word answer is not sufficient for full credit. Staple your answer sheets to your question sheet. The following is a list of the new employees of one firm, along with some information about each of them.
Person is Male.
Scores on the Stanford-Binet IQ test have a normal distribution with mean 100 and standard deviation 15. We want to set the admissions standards for a school so that only the smartest sixty percent of people will be eligible. Suppose a random sample of 25 IQ scores is to be taken. Suppose a random sample of 144 IQ scores is to be taken. A clothing store chain is interested in the relationship between the amount of direct mail advertising sent out and the number of customers patronizing a store having a special sale.