Question 4 You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 81.8 82.8 90.7 75.7 83.1 83.5 86.6 78.7 91.9 87.6 78.6 76.6 Find the 90% 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). 90% C.I. = Answer should be obtained without any preliminary rounding.

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Question 4
You must estimate the mean temperature (in degrees Fahrenheit) with the following sample
temperatures:
81.8
82.8
90.7
75.7
83.1
83.5
86.6
78.7
91.9
87.6
78.6
76.6
Find the 90% 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).
90% C.I. =
%3D
Answer should be obtained without any preliminary rounding.
Transcribed Image Text:Question 4 You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 81.8 82.8 90.7 75.7 83.1 83.5 86.6 78.7 91.9 87.6 78.6 76.6 Find the 90% 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). 90% C.I. = %3D Answer should be obtained without any preliminary rounding.
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