You are given the sample mean and the population standard deviation . Use this information to construct 90% and 95% confidence intervals for the population mean.  Interpret the results and compare the widths of the confidence intervals . From a random sample of 73 dates , the mean record high daily temperature in a certain city has a mean of 86.37 degrees Fahrenheit . Assume the population standard deviation is 15.46 degrees Fahrenheit .  A) the 90% confidence interval is ( , ) round to two decimal places as needed  b) the 95% confident interval is ( , ) . Round to 2 decimal places as needed  c) which interval is wider ? d) interpret the results

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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You are given the sample mean and the population standard deviation . Use this information to construct 90% and 95% confidence intervals for the population mean.  Interpret the results and compare the widths of the confidence intervals . From a random sample of 73 dates , the mean record high daily temperature in a certain city has a mean of 86.37 degrees Fahrenheit . Assume the population standard deviation is 15.46 degrees Fahrenheit . 

A) the 90% confidence interval is ( , ) round to two decimal places as needed 

b) the 95% confident interval is ( , ) . Round to 2 decimal places as needed 

c) which interval is wider ?

d) interpret the results 

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