You may need to use the appropriate appendix table or technology to answer this question. Ahmadi, Inc., has been manufacturing small automobiles that have averaged 51 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 51 miles per gallon in highway driving. An independent testing service road-tested 64 of the automobiles. The sample showed an average of 52.9 miles per gallon with a standard deviation of 4 miles per gallon. (a) Formulate the hypotheses (in miles per gallon) to determine whether or not the manufacturer's advertising campaign is legitimate. (Enter 1 for as needed.) Ho H₂: (b) Compute the test statistic. (c) What is the p-value associated with the sample results and what is your conclusion? Let a 0.05. Find the p-value. (Round your answer to four decimal places.) p-value= State your conclusion. O Do not reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Do not reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Need Help? Read It
You may need to use the appropriate appendix table or technology to answer this question. Ahmadi, Inc., has been manufacturing small automobiles that have averaged 51 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 51 miles per gallon in highway driving. An independent testing service road-tested 64 of the automobiles. The sample showed an average of 52.9 miles per gallon with a standard deviation of 4 miles per gallon. (a) Formulate the hypotheses (in miles per gallon) to determine whether or not the manufacturer's advertising campaign is legitimate. (Enter 1 for as needed.) Ho H₂: (b) Compute the test statistic. (c) What is the p-value associated with the sample results and what is your conclusion? Let a 0.05. Find the p-value. (Round your answer to four decimal places.) p-value= State your conclusion. O Do not reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Do not reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate. Need Help? Read It
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:You may need to use the appropriate appendix table or technology to answer this question.
Ahmadi, Inc., has been manufacturing small automobiles that have averaged 51 miles per gallon of gasoline in highway driving. The
company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 51 miles
per gallon in highway driving. An independent testing service road-tested 64 of the automobiles. The sample showed an average of
52.9 miles per gallon with a standard deviation of 4 miles per gallon.
(a) Formulate the hypotheses (in miles per gallon) to determine whether or not the manufacturer's advertising campaign is legitimate.
(Enter 1 for as needed.)
Ho
H₂
(b) Compute the test statistic.
(c) What is the p-value associated with the sample results and what is your conclusion? Let = 0.05.
Find the p-value. (Round your answer to four decimal places.)
p-value=
State your conclusion.
O Do not reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate.
Do not reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate.
Reject Ho. There is sufficient evidence to conclude that the manufacturer's advertising campaign is legitimate.
Reject Ho. There is insufficient evidence to conclude that the manufacturer's advertising campaign is legitimate.
Need Help?
Read It
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