Three o cers -- president, treasurer, and secretary -- are to be chosen from among four people: ann, bob, cyd, and dan. bob is not quali ed to be treasurer. cyd's other commitments make it impossible for her to be secretary. dan is irresponsible with money (cannot be treasurer) and might be corrupted by power (cannot be president). how many ways can the o cers be chosen?

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

[tex]5 \times1 \frac{12}{13} [/tex] me

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.