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Author Question: The Highway Safety Department wants to study the driving habits of individuals. A sample of 121 cars ... (Read 71 times)

Ethanolson3

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Question 1

The average score of a sample of 87 senior business majors at UTC who took the Graduate Management Admission Test was 510 with a standard deviation of 36. Provide a 98% confidence interval for the mean of the population.



Question 2

The Highway Safety Department wants to study the driving habits of individuals. A sample of 121 cars traveling on the highway revealed an average speed of 60 miles per hour with a standard deviation of 11 miles per hour. Determine a 95% confidence interval estimate for the speed of all cars.



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Marked as best answer by Ethanolson3 on Mar 25, 2023

Rcfelber

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Ethanolson3

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Reply 2 on: Mar 25, 2023
Excellent


Joy Chen

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Reply 3 on: Yesterday
:D TYSM

 

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