in order to join a social and educational club for tall people, women must be at least 5 ft 7 in. tall. Assuming that the heights of adult women are approximately normally distributed with mean 63 inches and standard deviation 4 inches what z-score is required for membership in the club? Type an integer or decimal

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0