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Randomly selected 120 student cars have ages with a mean of 7.1 years and a standard deviation of 3.6 years, while randomly selected 45 faculty cars have ages with a mean of 5.6 years and a standard deviation of 3.3 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is Is there sufficient evidence to support the claim that student cars are older than faculty cars? O A. No OB. Yes 2. Construct a 97% confidence interval estimate of the difference 41-42. where #₁ is the mean age of student cars and 42 is the mean age of faculty cars. < (442-442) <

Randomly selected 120 student cars have ages with a mean of 7.1 years and a standard deviation of 3.6 years, while randomly selected 45 faculty cars have ages with a mean of 5.6 years and a standard deviation of 3.3 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is Is there sufficient evidence to support the claim that student cars are older than faculty cars? O A. No OB. Yes 2. Construct a 97% confidence interval estimate of the difference 41-42. where #₁ is the mean age of student cars and 42 is the mean age of faculty cars. < (442-442) <

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
Section10.4: Distributions Of Data
Problem 19PFA
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Randomly selected 120 student cars have ages with a mean of 7.1 years and a standard deviation of 3.6 years, while randomly selected 45 faculty cars have ages with a mean of 5.6 years and a standard deviation of 3.3 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is Is there sufficient evidence to support the claim that student cars are older than faculty cars? OA. No B. Yes 2. Construct a 97% confidence interval estimate of the difference 1-2, where 1 is the mean age of student cars and 2 is the mean age of faculty cars. < (μ41-4₂) <
Transcribed Image Text:Randomly selected 120 student cars have ages with a mean of 7.1 years and a standard deviation of 3.6 years, while randomly selected 45 faculty cars have ages with a mean of 5.6 years and a standard deviation of 3.3 years. 1. Use a 0.03 significance level to test the claim that student cars are older than faculty cars. The test statistic is Is there sufficient evidence to support the claim that student cars are older than faculty cars? OA. No B. Yes 2. Construct a 97% confidence interval estimate of the difference 1-2, where 1 is the mean age of student cars and 2 is the mean age of faculty cars. < (μ41-4₂) <
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