Question
The owner of a restaurant serving continental-style dishes has a business objective to learn more about customer demand patterns over the weekend (Friday through Sunday).
The owner of a restaurant serving continental-style dishes has a business objective to learn more about customer demand patterns over the weekend (Friday through Sunday). The data of 630 clients on the type of dish ordered were collected, which were organized in the following table:
TYPE OF PLATE NUMBERS OF PLATES SERVED
BEEF 187
CHICKEN 103
COMBINE 30
DUCK 25
FISH 122
PASTA 63
SEAFOOD 74
LAMB 26
TOTAL 630
A. Build a summary table with the percentages for the types of dishes organized. B. Construct a bar graph and a circle graph for these data. C. What conclusions might the restaurant owner draw based on these data?
Exercise 2
Suppose that the owner of the restaurant in the previous exercise also wants to study the demand for desserts during the same period. The employer decides that, in addition to study if a dessert was ordered, he will also examine the gender of the Individual and if this he ordered a main dish with beef. Data from 600 teeth were obtained and organized in the following contingency tables:
GENDER
ordered dessert | MEN | FEMALE | TOTAL |
SI | 40 | 96 | 136 |
NO | 240 | 224 | 464 |
TOTAL | 280 | 320 | 600 |
Main Dish with Beef
ordered dessert | SI | NO | TOTAL |
si | 71 | 65 | 136 |
no | 116 | 348 | 464 |
total | 187 | 413 | 600 |
For each of the two contingency tables. Build contingency tables with: a) percentages based on the grand total, b) percentages based on the total of the columns and c) percentages based on the total of the rows.
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