On the scale mentioned in problem 4.7, if a score of 40 or more is considered “highly discriminatory” what is the probability that a human resources manager selected at random will have a score in...

On the scale mentioned in problem 4.7, if a score of 40 or more is considered “highly discriminatory” what is the probability that a human resources manager selected at random will have a score in that range?

problem 4.7

A scale measuring ageism (age discrimination) has been administered to a large sample of human resources managers at major corporations. The distribution of scores is approximately normal with a mean of 31 and a standard deviation of 5. What percentage of the sample had scores

a. below 20? _____

 b. below 40? _____

c. between 30 and 40? _____

 d. between 35 and 45? _____

 e. above 25? _____

 f. above 35?