Question

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 55 41.4...

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures:

55
41.4
45.5
38.3
45.3
42.7
34.6
50
25.5
48.7



Find the 99% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place).

99% C.I. =

Math   Statistics-And-Probability   
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Answer #1

From the given sample data : n=10 , ,

The sample mean is ,

The sample standard deviation is ,

Now , ; From t-table

The 99% confidence interval is ,

Therefore , the 99% C.I. = (34.3,51.1)

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