I'm not understanding the concept and process the breakdown on this question. As part of a water quality survey, you test the water hardness in several randomly selected streams. The results are shown below. Construct a confidence interval for the population variance $ \sigma^2 $ and the population standard deviation $ \sigma $. Use a 95% level of confidence. Assume that the population has a normal distribution.- $ n = 21 $- $ s = 14 $ grains per gallonWhat is the confidence interval for the population variance $ \sigma^2 $?\[ ( \ \ \ \ , \ \ \ \ ) \] (Round to one decimal place as needed.)

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As part of a water quality survey, you test the water hardness in several randomly selected streams. The results are shown below. Construct a confidence interval for the population variance o? and the population standard deviation o. Use a 95% level of confidence. Assume that the population has a normal distribution. n=21 s= 14 grains per gallon What is the confidence interval for the population variance o? OD (Round to one decimal place as needed.)

As part of a water quality survey, you test the water hardness in several randomly selected streams. The results are shown below. Construct a confidence interval for the population variance o? and the population standard deviation o. Use a 95% level of confidence. Assume that the population has a normal distribution. n=21 s= 14 grains per gallon What is the confidence interval for the population variance o? OD (Round to one decimal place as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

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I'm not understanding the concept and process the breakdown on this question.

As part of a water quality survey, you test the water hardness in several randomly selected streams. The results are shown below. Construct a confidence interval for the population variance $ \sigma^2 $ and the population standard deviation $ \sigma $. Use a 95% level of confidence. Assume that the population has a normal distribution.

- $ n = 21 $
- $ s = 14 $ grains per gallon

What is the confidence interval for the population variance $ \sigma^2 $?

\[ ( \ \ \ \ , \ \ \ \ ) \] (Round to one decimal place as needed.)

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