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, 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 ratings companyB.The customersC.The restaurantsD.This information is not given.2. What was measured?
Select all that apply.A.The seating capacityB.The percentage of customers that would returnC.The foodD. The serviceE.The decorF. This information is not given.3. When were the measurements taken?A. CurrentlyB. RecentlyC. Last yearD. This information is not given.4. Where were measurements taken?A. At the customers' homesB. At the restaurantsC. At the ratings companyD. This information is not given.5. Why were the measurements taken?A. To provide a service to consumersB. To show an association between quality and costC. To determine the best restaurantD. 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 serviceB.The seating capacityC. The foodD. The percentage of customers that would returnE. The decorF. 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 specifiedB. The percentage of customers that would return ; the units are percentC. The decor ;the units are pointsD. The service ;the units are pointsE. The food ; the units are pointsF. There are no quantitative variables.9. Specify whether the data come from a designed survey or experiment.A. ExperimentB. Designed surveyC. This information cannot be determined by the given data.10. Are the variables time series or cross-sectional?A. Time seriesB. Cross-sectionalC. Neither11. 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.

Answer 1

Answer:

1. C. The restaurant.

2. A. The seating capacity, B. The percentage of customers that would return, C. The food, D. The service, E. The decor.

3. D. This information is not given

4. B. At the restaurant.

5. C. To determine the best restaurant.

6. B. The customers were surveyed.

7. B. The seating capacity

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

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

10. B. Cross-sectional

11. D. There are no specific concerns.

Explanation:

Categorical variable are one which are usually fixed and assign units of observation to nominal group on qualitative basis.

Time series analysis is set of observation collected at equally spaced intervals

Cross sectional analysis is set of observations that come from different individual at single point of time.

Qualitative analysis identifies the type or specific feature of the data under observation. These are non numerical in nature

Quantitative analysis is set of data which is observed to identify value. These are numerical in nature.