Question

An association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping. Assume that the number of hours a worker spends doing holiday shopping on an office computer follows an exponential distribution.

The study reported that there is a 0.58 probability that a worker uses an office computer for holiday shopping 5 hours or less. Is the mean time spent using an office computer for holiday shopping closest to 5.8, 6.2, 6.6, or 7.0 hours?

a)5.8

b)6.2     

c)6.6

d)7.0

b)Using the mean time from part (a), what is the probability that a worker uses an office computer for holiday shopping more than 12 hours? (Round your answer to four decimal places.)

c) What is the probability that a worker uses an office computer for holiday shopping between 4 and 6 hours? (Round your answer to four decimal places.)

Answer 1