Question

For a population automobile drives in a medium-sized city (population about 100,000), the traffic police ticketed numerous drivers speeding in school zones during school hours. The drivers’ ticketed speeds formed a normal distribution with a mean of µ = 35 (miles per hour) and ơ = 5. With these parameters, answer the associated question(s).

If someone's ticketed speed, X, were converted to a z score and that z score equals +1.5, how fast was the driver going? Round to the nearest tenths place if a fraction.

Group of answer choices

27.5

28.5

40.3

42.5

47.7

the correct speed is a value not listed in alternatives "a" through "e"

Answer 1