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. 1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars. (a) The test statistic is 1.209 (b) The P-value is (give to 4 decimal places): 0.118 (c) Is there sufficient evidence to support the claim that student cars are older than faculty cars? O A. No OB. Yes
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. 1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars. (a) The test statistic is 1.209 (b) The P-value is (give to 4 decimal places): 0.118 (c) Is there sufficient evidence to support the claim that student cars are older than faculty cars? O A. No OB. Yes
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please see the picture below. None of the answers I've tried is coming back right. I just need help with the items in the red boxes.
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.
1. Use a 0.01 significance level to test the claim that student cars are older than faculty cars.
(a) The test statistic is 1.209
(b) The P-value is (give to 4 decimal places): 0.118
(c) Is there sufficient evidence to support the claim that student cars are older than faculty cars?
O A. No
OB. Yes
2. Construct a 99% confidence interval estimate of the difference µ, – µf, where u, is the mean age of student cars and u; is the mean
age of faculty cars. (give answers to at least 3 decimal places)
2.547
< (Hs - Hs) < 6.547
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