In a sample of 17 days in July, the mean temperature for a certain city was 99.1°F with a standard deviation of 4.8°F. a.) How many degrees of freedom will be used for the given sample size? O 18 O 34 O 17 O16 b.) What is the critical value ta/2 that corresponds to a 90% confidence level? 01.75 01.74 01.34 O1.33 c.) What is the 90% confidence interval estimate of the mean temperature in July for the city? O (97.00,101.20) O (97.13,101.07) O (97.07,101.13) O (97.19,101.01)

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In a sample of 17 days in July, the mean temperature for a certain city was 99.1°F with a standard deviation of 4.8°F.
a.) How many degrees of freedom will be used for the given sample size?
O 18
O 34
O 17
O 16
b.) What is the critical value ta/2 that corresponds to a 90% confidence level?
O1.75
O1.74
01.34
O1.33
c.) What is the 90% confidence interval estimate of the mean temperature in July for the city?
O (97.00,101.20)
O (97.13,101.07)
O (97.07,101.13)
O (97.19,101.01)
Transcribed Image Text:In a sample of 17 days in July, the mean temperature for a certain city was 99.1°F with a standard deviation of 4.8°F. a.) How many degrees of freedom will be used for the given sample size? O 18 O 34 O 17 O 16 b.) What is the critical value ta/2 that corresponds to a 90% confidence level? O1.75 O1.74 01.34 O1.33 c.) What is the 90% confidence interval estimate of the mean temperature in July for the city? O (97.00,101.20) O (97.13,101.07) O (97.07,101.13) O (97.19,101.01)
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