Tat its rs spend their break age volunteer workers recorded their breaks over the course of one week. The result w mple times. This sample had a mean of 11.5 minutes and a sample standard deviatic tes. Assuming that this sample is representative of all of the company's workers, ne the 90% confidence interval of the mean break time of the whole company.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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A company is attempting to estimate the average time that its workers spend on their breaks.
Several volunteer workers recorded their breaks over the course of one week. The result was
150 sample times. This sample had a mean of 11.5 minutes and a sample standard deviation of
1.5 minutes. Assuming that this sample is representative of all of the company's workers,
determine the 90% confidence interval of the mean break time of the whole company.
με
Transcribed Image Text:A company is attempting to estimate the average time that its workers spend on their breaks. Several volunteer workers recorded their breaks over the course of one week. The result was 150 sample times. This sample had a mean of 11.5 minutes and a sample standard deviation of 1.5 minutes. Assuming that this sample is representative of all of the company's workers, determine the 90% confidence interval of the mean break time of the whole company. με
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