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Find the Requested Confidence Interval σ=13.36\sigma = 13.36 , Determine A 95.44%95.44 \%

Question 71

Multiple Choice

Find the requested confidence interval.
-The data below consists of the test scores of 32 students. Assuming σ=13.36\sigma = 13.36 , determine a 95.44%95.44 \% confidence interval for the population mean.
80746193967080645198938772778496100677179998566705775869294658491\begin{array} { r r r r r r r r } 80 & 74 & 61 & 93 & 96 & 70 & 80 & 64 \\ 51 & 98 & 93 & 87 & 72 & 77 & 84 & 96 \\ 100 & 67 & 71 & 79 & 99 & 85 & 66 & 70 \\ 57 & 75 & 86 & 92 & 94 & 65 & 84 & 91 \end{array}


A) 78.3978.39 to 87.3987.39
B) 69.3969.39 to 83.5883.58
C) 79.4979.49 to 89.3989.39
D) 75.1975.19 to 84.6384.63

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