A used car dealer says that the mean price of a three-year-old sports utility vehicle is $19,000. You suspect this claim is incorrect and find that a random sample of 21 similar vehícles has a mean price of $19,566 and a standard deviation of $1909. Is there enough evidence to reject the claim at a=0.017 Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Write the claim mathematically and identify Ho and H Which of the following correctly states Ho and H,? OC. Ho: u=$19,000 Hp> $19,000 OF. Ho: p$19.000 Hp=$19,000 O A. Ho: u>$19,000 Hus$19,000 O B. Ho: =$19,000 H<$19,000 O D. Ho: 2$19,000 Hu<$19,000 O E. Ho: u=$19,000 Hr$19,000 (b) Find the critical value(s) and identify the rejection region(s). What is(are) the critical value(s), to? 6-0 (Use a comma to separate answers as needed. Round to three decimal places as needed.) Determine the rejection region(s). Select the correct choice below and fill in (Round to three decimal places as needed.) answer box(es) within your choice. OB. t and t> O A. t< O D. 1P OC.
A used car dealer says that the mean price of a three-year-old sports utility vehicle is $19,000. You suspect this claim is incorrect and find that a random sample of 21 similar vehícles has a mean price of $19,566 and a standard deviation of $1909. Is there enough evidence to reject the claim at a=0.017 Complete parts (a) through (e) below. Assume the population is normally distributed. (a) Write the claim mathematically and identify Ho and H Which of the following correctly states Ho and H,? OC. Ho: u=$19,000 Hp> $19,000 OF. Ho: p$19.000 Hp=$19,000 O A. Ho: u>$19,000 Hus$19,000 O B. Ho: =$19,000 H<$19,000 O D. Ho: 2$19,000 Hu<$19,000 O E. Ho: u=$19,000 Hr$19,000 (b) Find the critical value(s) and identify the rejection region(s). What is(are) the critical value(s), to? 6-0 (Use a comma to separate answers as needed. Round to three decimal places as needed.) Determine the rejection region(s). Select the correct choice below and fill in (Round to three decimal places as needed.) answer box(es) within your choice. OB. t and t> O A. t< O D. 1P OC.
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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