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A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You be the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a=0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Which sampling distribution should be used and why? OA. Use a normal sampling distribution because the population is normal, and o is known. OC. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. *** OB. Use a t-sampling distribution because the population is normal, and o is unknown. OD. Use a t-sampling distribution because n < 30. OF. Use a normal sampling distribution because the population is normal, and o is unknown.

A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You be the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a=0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Which sampling distribution should be used and why? OA. Use a normal sampling distribution because the population is normal, and o is known. OC. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. *** OB. Use a t-sampling distribution because the population is normal, and o is unknown. OD. Use a t-sampling distribution because n < 30. OF. Use a normal sampling distribution because the population is normal, and o is unknown.

MATLAB: An Introduction with Applications
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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A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a=0.10, test the company's claim. Assume the population is normally distributed Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Which sampling distribution should be used and why? OA. Use a normal sampling distribution because the population is normal, and o is known. OC. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. OB. Use a t-sampling distribution because the population is normal, and o is unknown OD. Use a t-sampling distribution because n<30. OF. Use a normal sampling distribution because the population is normal, and o is unknown. 11111
Transcribed Image Text:A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a=0.10, test the company's claim. Assume the population is normally distributed Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Which sampling distribution should be used and why? OA. Use a normal sampling distribution because the population is normal, and o is known. OC. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. OB. Use a t-sampling distribution because the population is normal, and o is unknown OD. Use a t-sampling distribution because n<30. OF. Use a normal sampling distribution because the population is normal, and o is unknown. 11111
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C. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. State the appropriate hypotheses to test. IS OA. Ho: ≤25 Ha u>25 OC. H₂ μ#25 H₂ μ = 25 What is the value of the standardized test statistic? Get more help - Q Search 16. 4- 4 The standardized test statistic is (Round to two decimal places as needed) ♫t. 18 90 C f9 OD. Use a t-sampling distri KA OF. Use a normal sampling population is normal, an B. Ho: μ ≥25 Ha: μ< 25 OD. Ho: μ = 25 Ha: μ#25 Clear all f10 ▷ll O f11 DDI
Transcribed Image Text:C. Use a t-sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because n> 30. State the appropriate hypotheses to test. IS OA. Ho: ≤25 Ha u>25 OC. H₂ μ#25 H₂ μ = 25 What is the value of the standardized test statistic? Get more help - Q Search 16. 4- 4 The standardized test statistic is (Round to two decimal places as needed) ♫t. 18 90 C f9 OD. Use a t-sampling distri KA OF. Use a normal sampling population is normal, an B. Ho: μ ≥25 Ha: μ< 25 OD. Ho: μ = 25 Ha: μ#25 Clear all f10 ▷ll O f11 DDI
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y). You believe the claim is incorrect and find th random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a = 0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. o is known. OE. Use a normal sampling distribution because n > 30. State the appropriate hypotheses to test. OA. Ho: ≤25 H₂ μ25 OC. Ho μ#25 H₂ μ = 25 his Get more help - A Tip P Pearson OF. Use a normal sampling distribution because the population is normal, and o is unknown. OB. Ho: μ ≥ 25 H₂: μ< 25 OD. Ho: μ = 25 H₂: μ#25 Clear all opyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | Q Search ? O Check answer 151249225 3:26 PM 7/19/2023
Transcribed Image Text:y). You believe the claim is incorrect and find th random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 2 mpg. At a = 0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. o is known. OE. Use a normal sampling distribution because n > 30. State the appropriate hypotheses to test. OA. Ho: ≤25 H₂ μ25 OC. Ho μ#25 H₂ μ = 25 his Get more help - A Tip P Pearson OF. Use a normal sampling distribution because the population is normal, and o is unknown. OB. Ho: μ ≥ 25 H₂: μ< 25 OD. Ho: μ = 25 H₂: μ#25 Clear all opyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | Q Search ? O Check answer 151249225 3:26 PM 7/19/2023
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