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Construct a 99% confidence interval estimate of the difference u, - Hi, where u, is the mean age of student cars and uf is the mean age of faculty cars. (give answers to at least 3 decimal places) -1.438 E < (H, - Hi) < 5.438

Construct a 99% confidence interval estimate of the difference u, - Hi, where u, is the mean age of student cars and uf is the mean age of faculty cars. (give answers to at least 3 decimal places) -1.438 E < (H, - Hi) < 5.438

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Can anyone get this right. I've tried multiple answers, but none of them are correct. One picture has the info needed and thr other one contains the actual question for the confidence level. The answer is NOT WHAT'S PICTURED OR 2.547, 6.547
You randomly select 14 student cars and find they have a mean age of 7.3 years and a standard deviation of 3.6 years. You also random select 18 faculty cars and find they have a mean age of 5.3 years and a standard deviation of 3.3 years.
Transcribed Image Text:You randomly select 14 student cars and find they have a mean age of 7.3 years and a standard deviation of 3.6 years. You also random select 18 faculty cars and find they have a mean age of 5.3 years and a standard deviation of 3.3 years.
Construct a 99% confidence interval estimate of the difference u, - Hf, where u, is the mean age of student cars and uf is the mean age of faculty cars. (give answers to at least 3 decimal places) -1.438 E < (us - Hj) < 5.438
Transcribed Image Text:Construct a 99% confidence interval estimate of the difference u, - Hf, where u, is the mean age of student cars and uf is the mean age of faculty cars. (give answers to at least 3 decimal places) -1.438 E < (us - Hj) < 5.438
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