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The high temperatures (in degrees Fahrenheit) of a random sample of 7 small towns are: 99.5...

The high temperatures (in degrees Fahrenheit) of a random sample of 7 small towns are:

99.5
97.9
97
98.7
99.4
97.2
97.4



Assume high temperatures are normally distributed. Based on this data, find the 80% confidence interval of the mean high temperature of towns. 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).

80% C.I. = ????

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

math   Statistics-And-Probability   
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Answer #1

The statistical software output for this problem is :

80% C.I. = (97.58 , 98.72)

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