9. Sick-leave time used by employees of a firm in one month has approximately a normal distribution with a mean of 200 hours and a variance of 400. a. Find the probability that total sick leave for next month will be less than 150 hours. b. In planning schedules for next month, how much time should be budgeted for sick leave if that amount is to be exceeded with a probability of only 0.10?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
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9.
Sick-leave time used by employees of a firm in one month has approximately a normal
distribution with a mean of 200 hours and a variance of 400.
a.
Find the probability that total sick leave for next month will be less than 150 hours.
b.
In planning schedules for next month, how much time should be budgeted for sick leave
if that amount is to be exceeded with a probability of only 0.10?
Transcribed Image Text:9. Sick-leave time used by employees of a firm in one month has approximately a normal distribution with a mean of 200 hours and a variance of 400. a. Find the probability that total sick leave for next month will be less than 150 hours. b. In planning schedules for next month, how much time should be budgeted for sick leave if that amount is to be exceeded with a probability of only 0.10?
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