Question

You intend to estimate a population mean μμ with the following sample. 37.2 33.3 32.1 49...

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

37.2
33.3
32.1
49
60
44.8
42.2
35.7
44.6
46.7
32.9



You believe the population is normally distributed. Find the 80% 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).

80% 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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