A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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? OA. Use a t-sampling distribution because the population is normal, and a is unknown. OC. Use a normal sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because the population is normal, and o is unknown. State the appropriate hypotheses to test. OA. Ho: H=24 H₂: μ#24 OC. Ho: #24 H₂: H=24 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.) What is the critical value? The critical value is (Round to three decimal places as needed.) D OB. Use a t-sampling distribution because the population is normal, and o is known. OD. Use a normal sampling distribution because n> 30. OF. Use a t-sampling distribution because n<30. Ο Β. Ηοί μ2 24 H₂H<24 OD. Ho: ≤24 H₂:μ>24
A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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? OA. Use a t-sampling distribution because the population is normal, and a is unknown. OC. Use a normal sampling distribution because the population is normal, and o is known. OE. Use a normal sampling distribution because the population is normal, and o is unknown. State the appropriate hypotheses to test. OA. Ho: H=24 H₂: μ#24 OC. Ho: #24 H₂: H=24 What is the value of the standardized test statistic? The standardized test statistic is (Round to two decimal places as needed.) What is the critical value? The critical value is (Round to three decimal places as needed.) D OB. Use a t-sampling distribution because the population is normal, and o is known. OD. Use a normal sampling distribution because n> 30. OF. Use a t-sampling distribution because n<30. Ο Β. Ηοί μ2 24 H₂H<24 OD. Ho: ≤24 H₂:μ>24
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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Plz help asap t7
![A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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?
OA. Use a t-sampling distribution because the population is normal, and o is unknown.
OC. Use a normal sampling distribution because the population is normal, and σ is known.
OE. Use a normal sampling distribution because the population is normal, and o is unknown.
State the appropriate hypotheses to test.
O A. Ho: μ =24
H₂: μ#24
OC. Ho: #24
H₂: μ =24
What is the value of the standardized test statistic?
The standardized test statistic is. (Round to two decimal places as needed.)
What is the critical value?
The critical value is. (Round to three decimal places as needed.)
Sam
.
C
***
OB. Use a t-sampling distribution because the population is normal, and σ is known.
OD. Use a normal sampling distribution because n > 30.
OF. Use a t-sampling distribution because n<30.
OB. Ho: μ224
Ha: μ<24
OD. Ho: H≤24
H₂:μ>24](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F436850a1-a2d1-4b10-9f67-a5959534a88f%2Fee97ac9e-bb57-49b2-be3d-3d3a5614ac6a%2F131k4b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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?
OA. Use a t-sampling distribution because the population is normal, and o is unknown.
OC. Use a normal sampling distribution because the population is normal, and σ is known.
OE. Use a normal sampling distribution because the population is normal, and o is unknown.
State the appropriate hypotheses to test.
O A. Ho: μ =24
H₂: μ#24
OC. Ho: #24
H₂: μ =24
What is the value of the standardized test statistic?
The standardized test statistic is. (Round to two decimal places as needed.)
What is the critical value?
The critical value is. (Round to three decimal places as needed.)
Sam
.
C
***
OB. Use a t-sampling distribution because the population is normal, and σ is known.
OD. Use a normal sampling distribution because n > 30.
OF. Use a t-sampling distribution because n<30.
OB. Ho: μ224
Ha: μ<24
OD. Ho: H≤24
H₂:μ>24
![A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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.
OC. Use a normal sampling distribution because the population is normal, and σ is known.
OE. Use a normal sampling distribution because the population is normal, and o is unknown.
State the appropriate hypotheses to test.
OA. Ho: H=24
H₂: μ#24
OC. Ho: #24
H₂: μ = 24
What is the value of the standardized test statistic?
The standardized test statistic is. (Round to two decimal places as needed.)
What is the critical value?
The critical value is (Round to three decimal places as needed.)
What is the outcome and the conclusion of this test?
Ho. At the 2.5% significance level, there is
C...
evidence to
OD. Use a normal sampling distribution because n > 30.
OF. Use a t-sampling distribution because n<30.
OB. Ho: μ ≥24
H₂:μ<24
O D. Ho: ≤24
H₂:μ>24
the car company's claim that the mean gas mileage for the luxury sedan is at least 24 miles per gallon.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F436850a1-a2d1-4b10-9f67-a5959534a88f%2Fee97ac9e-bb57-49b2-be3d-3d3a5614ac6a%2Frnqq7p_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A car company says that the mean gas mileage for its luxury sedan is at least 24 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 4 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.
OC. Use a normal sampling distribution because the population is normal, and σ is known.
OE. Use a normal sampling distribution because the population is normal, and o is unknown.
State the appropriate hypotheses to test.
OA. Ho: H=24
H₂: μ#24
OC. Ho: #24
H₂: μ = 24
What is the value of the standardized test statistic?
The standardized test statistic is. (Round to two decimal places as needed.)
What is the critical value?
The critical value is (Round to three decimal places as needed.)
What is the outcome and the conclusion of this test?
Ho. At the 2.5% significance level, there is
C...
evidence to
OD. Use a normal sampling distribution because n > 30.
OF. Use a t-sampling distribution because n<30.
OB. Ho: μ ≥24
H₂:μ<24
O D. Ho: ≤24
H₂:μ>24
the car company's claim that the mean gas mileage for the luxury sedan is at least 24 miles per gallon.
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