Q. Assume you want to test the null hypothesis that the mean value of the bill in the box is 9 against the alternative that it is less than 9. Assume that you know that the standard deviation of the value of a bill in the box is 7.96. Your decided that you will reject the null if the average value from 5 draws is less than 6. Illustrate what is the size of your test?
Q. One HEADLINE article in the text differentiates the spending habits of women also men: "Men spend twice as much as women do on television also stereo equipment." Illustrate what determinant of demand would most likely be involved?