7- Goodycar Tires claims that their new all-season tires are expected, on average, to last at least 50,000 miles. A random sample of 81 Goodyear tires was tested, and the results showed X = 48980 miles and s=5000 miles. (15%) a. Construct and interpret a 98% confidence interval for the true mean life of the new Goodyear tires. What is the margin of error ME (sampling error SE) of your confidence interval? b. Based on the interval, do you believe the average Goodyear tire lasts more than 50,100 miles?

7- Goodycar Tires claims that their new all-season tires are expected, on average, to last at least 50,000 miles. A random sample of 81 Goodyear tires was tested, and the results showed X = 48980 miles and s=5000 miles. (15%) a. Construct and interpret a 98% confidence interval for the true mean life of the new Goodyear tires. What is the margin of error ME (sampling error SE) of your confidence interval? b. Based on the interval, do you believe the average Goodyear tire lasts more than 50,100 miles?

Name: 6- 20% of airbags produced by Takata Co. over the past ten years are
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Description: 6- 20% of airbags produced by Takata Co. over the past ten years are defective airbags. (6%)a. What is the sampling distribution of the sample proportion of defective airbags for a random sample of 250 Takataairbags?b. What is the probability of the

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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Sample # 1 and has been provided in the second screenshot (hand written)
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