Question

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, on-site data were collected and reported about the percentage of customers that had dined there before​, the average cost and ratings of the location​, food​ and decor (all on a​ 30-point scale).

Who was​ measured?

A. The ratings company

B. The customers

C. The restaurants

D. This information is not given.

What was​ measured? Select all that apply.

A.The average cost

B. The percentage of customers that had dined there before

C.The food

D. The location

E. The decor

F. This information is not given.

When were the measurements​ taken?

A. Last year

B. Currently

C. Recently

D. This information is not given.

Where were measurements​ taken?

A. At the ratings company

B. At the​ customers' homes

C. At the restaurants

D. This information is not given.

Why were the measurements​ taken?

A. To determine the best restaurant

C. To show an association between quality and cost

D. This information is not given.

How were the measurements​ taken?

A. The data were collected by volunteer critics.

B. The staff at the restaurants were surveyed.

C. The customers were surveyed.

D. This information is not given.

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

A. The food

B. The location

C The average cost

D. The decor

E. The percentage of customers that had dined there beforethere before

F. There are no categorical variables.

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

A. The decor; the units are points

B.The location; the units are points

C.The average cost; the units are not specified

D. The percentage of customers that had dined there beforethere before​; the units are percent

E. The food; the units are points

F. There are no quantitative variables.

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.

Are the variables time series or​ cross-sectional?

Time series

​Cross-sectional

Neither

Specify any concerns. Select all that apply.

A. There are too many categorical variables.

B. The data collection was done incorrectly.

C. The data sample size was too small.

D. There are no specific concerns.

Answer 1

Solution:-

1. option C.The restaurants.

2. option F. This information is not given.

3. option D. This information is not given.

4. option C. Recently

5. option D. This information is not given.

6. option C. The customers were surveyed.

7. options A : the food , D the decor

8. options A : The decor; the units are points
D : The percentage of customers that would return ; the units are percent,

9. options B. Designed survey

10. option B. Cross-sectional

11.  option A.There are too many categorical variables.

B.The data collection was done incorrectly ,