USA Today reports (Gary Stoller, Hotel Bill Mistakes Mean Many Pay Too Much) that George Hansen, CEO
Question:
The file OverPay contains these data.
a. Conduct a hypothesis test with α = 0.05 to determine if the average overpayment is smaller than that indicated by Corporate Lodging Consultants.
b. If the actual average overpayment at the hotel chain was $11 with an actual standard deviation of $1.50, determine the probability that the hypothesis test would correctly indicate that the actual average is less than $11.35.
Transcribed Image Text:
9.99 9.87 11.53 12.40 12.36 1168 12.52 9.34 13.13 10.78 9.76 10.88 10.61 0.29 10.23 9.29 8.82 8.70 8.22 11.01 12.40 9.55 1.30 02 8.19 1056 8.49 7.99 8.03 10.53
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a H O m 1135 H A m 1135 a 005 Since s is unknown we use a t test statistic and reject H O if t 1...View the full answer
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Related Book For
Business Statistics A Decision Making Approach
ISBN: 9780133021844
9th Edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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