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ts luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of ndard deviation of 5 mpg. At a = 0.025, test the company's claim. Assume the population is normally distributed. ? ppulation is normal, and o is O B. Use a t-sampling distribution because n< 30. the population is normal, and o O D. Use a t-sampling distribution because the population is normal, and o is unknown. the population is normal, and o O F. Use a normal sampling distribution because n> 30.

ts luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of ndard deviation of 5 mpg. At a = 0.025, test the company's claim. Assume the population is normally distributed. ? ppulation is normal, and o is O B. Use a t-sampling distribution because n< 30. the population is normal, and o O D. Use a t-sampling distribution because the population is normal, and o is unknown. the population is normal, and o O F. Use a normal sampling distribution because n> 30.

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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A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 21 mpg and a standard deviation of 5 mpg. At a = 0.025, 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? Com O A. Use a t-sampling distribution because the population is normal, and o is O B. Use a t-sampling distribution because n< 30. known. OC. Use a normal sampling distribution because the population is normal, and o is known. D. Use a t-sampling distribution because the population is normal, and o is unknown. O E. Use a normal sampling distribution because the population is normal, and o is unknown. O F. Use a normal sampling distribution because n> 30. State the appropriate hypotheses to test. O A. Ho: µ = 23 Hg: µ ±23 O B. Ho: H#23 O C. Ho: µ2 23 O D. Ho: us23 Click to select your answer(s).
Transcribed Image Text:A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 21 mpg and a standard deviation of 5 mpg. At a = 0.025, 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? Com O A. Use a t-sampling distribution because the population is normal, and o is O B. Use a t-sampling distribution because n< 30. known. OC. Use a normal sampling distribution because the population is normal, and o is known. D. Use a t-sampling distribution because the population is normal, and o is unknown. O E. Use a normal sampling distribution because the population is normal, and o is unknown. O F. Use a normal sampling distribution because n> 30. State the appropriate hypotheses to test. O A. Ho: µ = 23 Hg: µ ±23 O B. Ho: H#23 O C. Ho: µ2 23 O D. Ho: us23 Click to select your answer(s).
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