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According to the American Time Use Survey conducted by the

According to the American Time Use Survey conducted by the Bureau of Labor Statistics (www.bls.gov/atus/), Americans spent an average of 985.50 hours watching television in 2010. Suppose that the standard deviation of the distribution of times that Americans spent watching television in 2010 is 285.20 hours.

a. Using Chebyshev’s theorem, find at least what percentage of Americans watched television in

2010 for

i. 272.50 to 1698.50 hours

ii. 129.90 to 1841.10 hours

b. Using Chebyshev’s theorem, find the interval that contains the time (in hours) that at least 75% of Americans spent watching television in 2010.

a. Using Chebyshev’s theorem, find at least what percentage of Americans watched television in

2010 for

i. 272.50 to 1698.50 hours

ii. 129.90 to 1841.10 hours

b. Using Chebyshev’s theorem, find the interval that contains the time (in hours) that at least 75% of Americans spent watching television in 2010.

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