newspaper article stated that the average full-time college student works at least 25.4 hours per week. To test this claim a random survey of 135 full-time college students was taken. The survey found that these students worked an average of 25.1 hours a week with a standard deviation of 1.7 hours. Use 2.5% level of significance to test the newspaper's claim. Explain your findings in at least one complete sentence.

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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9. The distribution of the hours full-time college students work is approximately normal. A recent
newspaper article stated that the average full-time college student works at least 25.4 hours per week.
To test this claim a random survey of 135 full-time college students was taken. The survey found that
these students worked an average of 25.1 hours a week with a standard deviation of 1.7 hours. Use 2.5%
level of significance to test the newspaper's claim. Explain your findings in at least one complete sentence.
Transcribed Image Text:9. The distribution of the hours full-time college students work is approximately normal. A recent newspaper article stated that the average full-time college student works at least 25.4 hours per week. To test this claim a random survey of 135 full-time college students was taken. The survey found that these students worked an average of 25.1 hours a week with a standard deviation of 1.7 hours. Use 2.5% level of significance to test the newspaper's claim. Explain your findings in at least one complete sentence.
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