A marketing research company desires to know the mean consumption of milk per week among males over age 2525. They believe that the milk consumption has a mean of 2.52.5 liters, and want to construct a 85%85% confidence interval with a maximum error of 0.070.07 liters. Assuming a variance of 1.211.21 liters, what is the minimum number of males over age 2525 they must include in their sample? Round your answer up to the next integer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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A marketing research company desires to know the mean consumption of milk per week among males over age 2525. They believe that the milk consumption has a mean of 2.52.5 liters, and want to construct a 85%85% confidence interval with a maximum error of 0.070.07 liters. Assuming a variance of 1.211.21 liters, what is the minimum number of males over age 2525 they must include in their sample? Round your answer up to the next integer.

 

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