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A research company desires to know the mean consumption of meat per week among people over...

A research company desires to know the mean consumption of meat per week among people over age 32. A sample of 576 people over age 32 was drawn and the mean meat consumption was 4.9 pounds. Assume that the population standard deviation is known to be 1 pounds. Construct the 85% confidence interval for the mean consumption of meat among people over age 32. Round your answers to one decimal place.

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Answer #1

85% confidence interval for is

- Z/2 * / sqrt(n ) < < + Z/2 * / sqrt(n )

4.9 - 1.4395 * 1 / sqrt(576) < < 4.9 + 1.4395 * 1 / sqrt(576)

4.8 < < 5.0

85% CI is (4.8 , 5.0 )

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