Wait staff at restaurants have employed various strategies to increase tips. An article in the Sept. 5,
Question:
Wait staff at restaurants have employed various strategies to increase tips. An article in the Sept. 5, 2005, New Yorker reported that “In one study a waitress received 50% more in tips when she introduced herself by name than when she didn’t.” Consider the following (fictitious) data on tip amount as a percentage of the bill:
Introduction:
No introduction:
Does this data suggest that an introduction increases tips on average by more than 50%? State and test the relevant hypotheses. [Hint: Consider the parameter .]
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781133169345
8th Edition
Authors: Jay L Devore, Roger Ellsbury
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