Randomly selected 10 student cars have ages with a mean of 7.5 years and a standard deviation of 3.4 years, while randomly selected 10 faculty cars have ages with a mean of 5.3 years and a standard deviation of 3.3 years. Use a 0.05 significance level to test the claim that student cars are older than faculty cars. what would be the critical value?
Randomly selected 10 student cars have ages with a mean of 7.5 years and a standard deviation of 3.4 years, while randomly selected 10 faculty cars have ages with a mean of 5.3 years and a standard deviation of 3.3 years. Use a 0.05 significance level to test the claim that student cars are older than faculty cars. what would be the critical value?
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 11PPS
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Randomly selected 10 student cars have ages with a mean of 7.5 years and a standard deviation of 3.4 years, while randomly selected 10 faculty cars have ages with a mean of 5.3 years and a standard deviation of 3.3 years.
Use a 0.05 significance level to test the claim that student cars are older than faculty cars. what would be the critical value?
Transcribed Image Text:2. Construct a 95% confidence interval estimate of the difference μ μf, where µ is the mean age of student cars and
Mf is the mean age of faculty cars.
-0.9478
< (μs - Mf) < 5.3478
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