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At one school, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a significance test to determine whether the average amount of time spent watching television per week has decreased. The hypotheses are:                                 H0: μ = 21.6 hours                                 HA: μ < 21.6 hours Explain the meaning of a correct decision. Choose the best answer below:  A. Concluding that μ = 21.6 hours when in fact μ < 21.6 hours B. Concluding that μ < 21.6 hours when in fact μ = 21.6 hours C. Concluding that μ > 21.6 hours when in fact μ < 21.6 hours D. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ = 21.6 hours OR concluding that μ < 21.6 hours when in fact μ < 21.6 hours E. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ < 21.6 hours

At one school, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a significance test to determine whether the average amount of time spent watching television per week has decreased. The hypotheses are:                                 H0: μ = 21.6 hours                                 HA: μ < 21.6 hours Explain the meaning of a correct decision. Choose the best answer below:  A. Concluding that μ = 21.6 hours when in fact μ < 21.6 hours B. Concluding that μ < 21.6 hours when in fact μ = 21.6 hours C. Concluding that μ > 21.6 hours when in fact μ < 21.6 hours D. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ = 21.6 hours OR concluding that μ < 21.6 hours when in fact μ < 21.6 hours E. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ < 21.6 hours

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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At one school, the average amount of time that tenth-graders spend watching television each week is 21.6 hours. The principal introduces a campaign to encourage the students to watch less television. One year later, the principal wants to perform a significance test to determine whether the average amount of time spent watching television per week has decreased. The hypotheses are:
                                H0: μ = 21.6 hours
                                HA: μ < 21.6 hours
Explain the meaning of a correct decision.
Choose the best answer below: 

A. Concluding that μ = 21.6 hours when in fact μ < 21.6 hours
B. Concluding that μ < 21.6 hours when in fact μ = 21.6 hours
C. Concluding that μ > 21.6 hours when in fact μ < 21.6 hours
D. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ = 21.6 hours OR concluding that μ < 21.6 hours when in fact μ < 21.6 hours
E. Failing to reject the hypothesis that μ = 21.6 hours when in fact μ < 21.6 hours
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