The Bureau of Labor Statistics’ American Time Use Survey showed that the amount

Question

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 0.15 hour (9 minutes) per day using a computer for leisure. Individuals ages 15 to 19 spend 0.9 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 9 minutes per day using a computer for leisure (Round your answers to 4 decimal places.)

Age 75 and over

   Ages 15 to 19

b.            More than two hours (Round your answers to 4 decimal places.)

Age 75 and over

Ages 15 to 19

c. Between 18 minutes and 54 minutes using a computer for leisure. (Round your answers to 4 decimal places.)

  Age 75 and over

Ages 15 to 19

d.   Find the 34th percentile. sixty six percent spend more than what amount of time? (Round your answers to 2 decimal places.)

Amount of time for individuals ages 75 and over              

  Amount of time for individuals ages 15 to 19

Explanation / Answer

The Bureau of Labor Statistics’ American Time Use Survey showed that the amount

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