The data come from three different servers, coded as A, B, and C to preserve anonymity. The

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The data come from three different servers, coded as A, B, and C to preserve anonymity. The number of bills for each server is shown in Table D.5. Do the servers serve equal numbers of tables?

Table D.5

Total Server B A 157 65 32 60 Number of Bills


In Data 2.12 on page 119, we introduce the dataset RestaurantTips containing information on the tipping patterns of patrons of the First Crush bistro in northern New York state. The data from 157 bills include the amount of the bill, size of the tip, percentage tip, number of customers in the group, whether or not a credit card was used, day of the week, and a coded identity of the server. The first four variables are quantitative and the last three are categorical.


Data 2.12 on page 119

The owner of a bistro called First Crush in Potsdam, New York, is interested in studying the tipping patterns of its patrons. He collected restaurant bills over a two-week period that he believes provide a good sample of his customers. The data from 157 bills are stored in RestaurantTips and include the amount of the bill, size of the tip, percentage tip, number of customers in the group, whether or not a credit card was used, day of the week, and a coded identity of the server.

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Statistics Unlocking The Power Of Data

ISBN: 9780470601877

1st Edition

Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock

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