SOLUTION: A confidence interval estimate for the population mean is given to be (40.21, 48.95). If the standard deviation is 13.394 and the sample size is 51, answer each of the following (

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Question 624275: A confidence interval estimate for the population mean is given to be (40.21, 48.95). If the standard deviation is 13.394 and the sample size is 51, answer each of the following (show all work):

(A) Determine the maximum error of the estimate, E.

(B) Determine the confidence level used for the given confidence interval.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

A confidence interval estimate for the population mean is given to be (40.21, 48.95). 

If the standard deviation is 13.394 and the sample size is 51, answer each of the following (show all work): 



(A) Determine the maximum error of the estimate, E. %2848.95-40.21%29%2F2+=+4.37

(B) Determine the confidence level used for the given confidence interval.

1st finding z

  ME+=+4.37+=+z%2A13.394%2Fsqrt%2851%29, Solve for z and then find P