ou intend to estimate a population mean μμ with the following sample. 64.2 57.6 50.2 39.5 53.1 56 73.1 57.5 41.9 70.5 55.1 You believe the population is normally distributed. Find the 98% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place). 98% C.I. =  Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

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You intend to estimate a population mean μμ with the following sample.

64.2
57.6
50.2
39.5
53.1
56
73.1
57.5
41.9
70.5
55.1



You believe the population is normally distributed. Find the 98% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place).

98% C.I. = 

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

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