A used car dealer says that the mean price of a three-year-old sports utility vehicle is $21,000. You suspect this claim is incorrect and find that a random sample of 24 similar vehicles has a mean price of $21,773 and a standard deviation of $1996. Is there enough evidence to reject the claim at a=0.10? 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 H, and H, ? OA H: µ $21,000 Ho: H#$21,000 H p=$21,000 C. Ho =$21,000 H:u#$21,000 Hu<$21,000 TO D. H: p>$21,000 Ho: p= $21,000 H p> $21,000 F Ho:u=$21,000 H u< $21,000 con Hius$21,000 (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 to three decimal places as needed.)

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A used car dealer says that the mean price of a three-year-old sports utility vehicle is $21,000. You suspect this claim is incorrect and find that a random
sample of 24 similar vehicles has a mean price of $21,773 and a standard deviation of $1996. Is there enough evidence to reject the claim at a= 0.10?
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 H, and H?
OA. Ho: H2 $21,000
Hp<$21,000
E. Ho: H $21,000
H p=$21,000
Ho:H= $21,000
H: u # $21,000
OD. Ho: >$21,000
H us$21,000
Ho:p= $21,000
F Ho: u= $21,000
corre
H: µ > $21,000
H:p< $21,000
(b) Find the critical value(s) and identify the rejection region(s).
What is(are) the critical value(s), t?
(Use
comma to separate answers as needed. Round to three decimal places as needed.)
Transcribed Image Text:A used car dealer says that the mean price of a three-year-old sports utility vehicle is $21,000. You suspect this claim is incorrect and find that a random sample of 24 similar vehicles has a mean price of $21,773 and a standard deviation of $1996. Is there enough evidence to reject the claim at a= 0.10? 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 H, and H? OA. Ho: H2 $21,000 Hp<$21,000 E. Ho: H $21,000 H p=$21,000 Ho:H= $21,000 H: u # $21,000 OD. Ho: >$21,000 H us$21,000 Ho:p= $21,000 F Ho: u= $21,000 corre H: µ > $21,000 H:p< $21,000 (b) Find the critical value(s) and identify the rejection region(s). What is(are) the critical value(s), t? (Use comma to separate answers as needed. Round to three decimal places as needed.)
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