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You intend to estimate a population mean μ with the following sample. 47.2 55.5 18.8 40.5...

You intend to estimate a population mean μ with the following sample. 47.2 55.5 18.8 40.5 44.8 41.8 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

from above 95% CI =31.32 , 51.55 ( please try 31.32 , 51.54 if this comes wrong)

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