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 vehicles has a mean price of $19,857 and a standard deviation of $1930. Is there enough evidence to reject the claim at a=0.05? Complete parts (a) through (e) below. Assume the population is normally distributed. ( (a) Write the claim mathematically and identify Ho and Ha Which of the following correctly states Ho and H₂? OA. Ho: p2$19,000 B. Ho: $19,000 H:μ<$19,000 6 Hoi us19,000 H:<$19,000 H:H=$19,000 D. Ho: $19,000 OE Ho: $19,000 H:μ>$19,000 H:μ*$19,000 ĐẸ Ho: 1519,000 H₂ μS$19,000 (b) Find the critical value(s) and identify the rejection region(s). What is(are) the critical value(s), to? (Use a comma to separate answers as needed. Round three decimal places as needed.)
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 vehicles has a mean price of $19,857 and a standard deviation of $1930. Is there enough evidence to reject the claim at a=0.05? Complete parts (a) through (e) below. Assume the population is normally distributed. ( (a) Write the claim mathematically and identify Ho and Ha Which of the following correctly states Ho and H₂? OA. Ho: p2$19,000 B. Ho: $19,000 H:μ<$19,000 6 Hoi us19,000 H:<$19,000 H:H=$19,000 D. Ho: $19,000 OE Ho: $19,000 H:μ>$19,000 H:μ*$19,000 ĐẸ Ho: 1519,000 H₂ μS$19,000 (b) Find the critical value(s) and identify the rejection region(s). What is(are) the critical value(s), to? (Use a comma to separate answers as needed. Round three decimal places as needed.)
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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