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For the description of the 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 (if they are not provided, give some possible units in which they might be measured). Specify whether the data come from a designed survey or experiment. Are the variables time series or cross-sectional? Report any concerns that may exist. REI is a large retailer that depends heavily on its catalog sales. It collects data internally and tracks the number of catalogs mailed out, the number of square inches of each catalog, the sales ( $ thousands) in the three weeks following each mailing. The company is interested in learning more about the relationship (if any) among the timing and space of their catalogs and their sales. Who was measured? Mailing recipients All employees All customers This information is not given. What was measured? Select all that apply. A. sales ($ thousands) in the three weeks following each mailing B. size of L.L. Bean C. number of catalogs mailed out D. the date of the mailing E. number of square inches of each catalog : This information is not given. When were the measurements taken? A. These measurements were taken over the span of the past two years. B. These measurements are current. c. These measurements were taken in 2010 . D. This information is not given. Where were the measurements taken? A. In the customer's homes B. L.L. Bean C. Globally D. This information is not given. Why were the measurements taken? A. The measurements were taken to assess the reach of L.L. Bean's mailing list. B. The measurements were taken to investigate the relationship among the timing and space of their catalogs and their sales. c. The measurements were taken to better understand each customer's preferences regarding items sold. D. This information is not given. How were the measurements taken? A. An online survey B. Collection of internal data C. Questionnaire sent in the mail to all customers D. This information is not given. Specify the categorical variables for this problem. Select all that apply. A. number of catalogs mailed out B. size of L.L. Bean C. the date of the mailing D. number of square inches of each catalog E. sales ( $ thousands) in the three weeks following each mailing F. There are no categorical variables. Specify the quantitative variables and identify the units for this problem. Select all that apply. A. the date of the mailing (units not provided; possibly days) B. number of square inches of each catalog (this is a unit of measurement) C. sales in the three weeks following each mailing ( $ thousands) D. number of catalogs mailed out (this is a unit of measurement) E. size of L.L. Bean (units not provided; possibly square feet) F. There are no quantitative variables. Specify whether the data come from a designed survey or experiment. A. It is stated that this is an experiment. B. It is stated that this is a designed survey. C. This is likely an experiment as the researchers manipulated different variables and measured the responses. D. This is likely a designed survey as these variables can be measured with data collection and surveys. E. This cannot be determined from the given information. Are the variables time series or cross-sectional? A. It is stated that the variables are time series. B. The variables are likely time series since the data was measured over a given span of time at regular intervals. C. The variables are likely cross-sectional given that they are measurements of values that change over time taken at a single time instant. D. It is stated that the variables are cross-sectional. E. This cannot be determined from the given information

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