How many commuters should be included in the sample? Assume a pilot sample gives an estimate of $30 for the population standard deviatio
How many commuters should be included in the sample? Assume a pilot sample gives an estimate of $30 for the population standard deviatio
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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Yost Transportation Research plans to estimate the average monthly transportation costs for workers who commute daily from northern New Jersey into New York City. Study coordinators want to be able to construct a 95% confidence interval that is no wider than ±$2. How many commuters should be included in the sample? Assume a pilot sample gives an estimate of $30 for the population standard deviation.
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