Question

You intend to estimate a population mean μμ with the following sample. 70.8 54.9 74 64.7...

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

70.8
54.9
74
64.7
69.4
59.7
71.6
60.1



You believe the population is normally distributed. Find the 90% 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).

90% C.I. =

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

Math   Statistics-And-Probability   
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Answer #1

90% CI =( 61.06 , 70.24 )

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