For the following description of data, identify the W's, name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they were not provided). Specify whether the data come from a designed survey or experiment. Are the variables time series or cross-sectional? Report any concerns you have as well. A company provides ratings from customer experiences on restaurants. For each restaurant, the percentage of customers that would return, the seating capacity, and ratings of the service, decor, and food (all on a 30-point scale) are reported.

1. Who was measured?

A.The rating company

B.The customers

C.The restaurants

D.This information is not given.

2. What was measured? Select all that apply.

A.The seating capacity

B.The percentage of customers that would return

C.The food

D. The service

E.The decor

F. This information is not given.

3. When were the measurements taken?

A. Currently

B. Recently

C. Last year

D. This information is not given.

4. Where were measurements taken?

A. At the customers' homes

B. At the restaurants

C. At the rating company

D. This information is not given.

5. Why were the measurements taken?

A. To provide a service to consumers

B. To show an association between quality and cost

C. To determine the best restaurant

D. This information is not given.

6. How were the measurements taken?

A. The data were collected by volunteer critics.

B. The customers were surveyed.

C. The staff at the restaurants were surveyed.

D. This information is not given.

7. Specify the categorical variables for this problem. Select all that apply.

A. The service

B.The seating capacity

C. The food

D. The percentage of customers that would return

E. The decor

F. There are no categorical variables.

8. Specify the quantitative variables and identify the units for this problem. Select all that apply.

A.The seating capacity;the units are not specified

B.The percentage of customers that would return; the units are percent

C.The decor;the units are points

D.The service;the units are points

E. The food ; the units are points

F. There are no quantitative variables.

9. Specify whether the data come from a designed survey or experiment.

A.Experiment

B.Designed survey

C.This information cannot be determined by the given data.

10. Are the variables time series or cross-sectional?

A. Time series

B. Cross-sectional

C. Neither

11. Specify any concerns. Select all that apply.

A.The data collection was done incorrectly.

B.The data sample size was too small.

C.There are too many categorical variables.

D.There are no specific concerns.

  

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