CONFIDENCE INTERVAL A sample of 60 days showed that a restaurant served an average of 190 customers during dinner. The standard deviation of the sample is 9. Find the 99% confidence interval for the mean.The supervisor of a milling company wishes to estimate the average age of employees presently employed. From past studies, the standard deviation is known to be 3 years. A sample of 90 employees is selected, and the mean is found to be 32.4 years. Find the 95% confidence interval of the population mean.The mean of the maximum loads supported by the 75 cables is 12.18 tons and the standard deviation is 0.54. Find the 90% confidence interval for the mean.

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Description: CONFIDENCE INTERVAL A sample of 60 days showed that a restaurant served an average of 190 customers during dinner. The standard deviation of the sample is 9. Find the 99% confidence interval for the mean.The supervisor of a milling company wishes to

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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CONFIDENCE INTERVAL

A sample of 60 days showed that a restaurant served an average of 190 customers during dinner. The standard deviation of the sample is 9. Find the 99% confidence interval for the mean.
The supervisor of a milling company wishes to estimate the average age of employees presently employed. From past studies, the standard deviation is known to be 3 years. A sample of 90 employees is selected, and the mean is found to be 32.4 years. Find the 95% confidence interval of the population mean.
The mean of the maximum loads supported by the 75 cables is 12.18 tons and the standard deviation is 0.54. Find the 90% confidence interval for the mean.

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