consider the approximately normal population of heights of m

consider the approximately normal population of heights of male college students with mean = 70 inches and standard deviation of = 4.2 inches. A random sample of 12heights is obtained.

(b) Find the proportion of male college students whose height is greater than 67 inches. (Give your answer correct to four decimal places.)

(d) Find the mean of the x distribution. (Give your answer correct to the nearest whole number.)

(ii) Find the standard error of the x distribution. (Give your answer correct to two decimal places.)

(e) Find P(x > 69). (Give your answer correct to four decimal places.)

(f) Find P(x < 63). (Give your answer correct to four decimal places.)

Solution

= 70 inches and standard deviation of = 4.2