A Seattle consumer agency believes that plumbers’ rates are too high and wants to estimate the mean hourly rate for all plumbers in Seattle. The consumer agency wants to be 95% confident with a margin of error of 3%. How many plumbers in the Seattle area should the agency survey?
A Seattle consumer agency believes that plumbers’ rates are too high and wants to estimate the mean hourly rate for all plumbers in Seattle. The consumer agency wants to be 95% confident with a margin of error of 3%. How many plumbers in the Seattle area should the agency survey?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 8SGR
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A Seattle consumer agency believes that plumbers’ rates are too high and wants to estimate the mean hourly rate for all plumbers in Seattle. The consumer agency wants to be 95% confident with a margin of error of 3%. How many plumbers in the Seattle area should the agency survey?
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