On a particular day, Mobay electronics produced 1000 electric bulbs at a mean production rate of 10 hours. Assume  that the known  population standard deviation is 2000 hours a. Why do we need a confidence interval? b. Construct a 95% confidence interval for the mean production time of the light bulbs of mobay electronics.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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On a particular day, Mobay electronics produced 1000 electric bulbs at a mean production rate of 10 hours. Assume  that the known  population standard deviation is 2000 hours

a. Why do we need a confidence interval?

b. Construct a 95% confidence interval for the mean production time of the light bulbs of mobay electronics.

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