SOLUTION: Suppose that the average number of billable hours for attorneys in large firms is 36 with a standard deviation of 5, and the average for attorneys in small firms is 30 with a stand

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Question 1195034: Suppose that the average number of billable hours for attorneys in large firms is 36 with a standard deviation of 5, and the average for attorneys in small firms is 30 with a standard deviation of 8.
a. (1 point) What is the probability that an attorney in a large firm bills over 40 hours a week?
b. What is the probability that an attorney in a small firm bills over 40 hours a week?
c. Explain any similarities and differences between your answers for (a) and (b).

Answer by ikleyn(52834) About Me  (Show Source):
You can put this solution on YOUR website!
.

It is about finding the area under the normal curve.

Use free of charge online calculator

https://onlinestatbook.com/2/calculators/normal_dist.html

specially intended for this purpose.