The bureau of labor statistics american time use survey

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The Bureau of Labor Statistics' American Time Use Survey showed that the amount of time spent using a computer for leisure varied greatly by age. Individuals age 75 and over averaged .25 hour (15 minutes) per day using a computer for leisure. Individuals ages 15 to 19 spend .9 hour per day using a computer for leisure. If these times follow an exponential distribution, find the proportion of each group that spends:

(a) Less than 14 minutes per day using a computer for leisure. (Round your answers to 4 decimal places

(b) More than two hours

(c) Between 28 minutes and 84 minutes using a computer for leisure

(d) Find the 25th percentile. Seventy five percent spend more than what amount of time? (Round your answers to 2 decimal places.)

Reference no: EM13473454

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