Recently the manager of the call center for a large Internet bank asked his staff to collect data on a random sample of the bank’s customers. Data on the following variables were collected and placed in a file called Bank Call Center:

a. Would you classify these data as time-series or cross-sectional? Explain.

b. Which of the variables are quantitative and which are qualitative?

c. For each of the six variables, indicate the level of data measurement.

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Column A Column B Account Number Caller Gender Column C Account Holder Gender Unique Tracking # 1 = Male 1 = Male 2 = Female 2 = Female A small portion of the data is as follows: Column D Column E Current Amount Due Column F Was This a Billing Question? Past Due Amount Numerical Value Numerical Value 3-Yes 4 No Account Number Caller Gender Account Holder Gender Past Due Amount Current Amount Due Was This a Billing Question? 4348291 2 2 40.35 82.85 3 6008516 1 1 0 -129.67 17476479 2 76.38 13846306 2 2 0 99.24 21393711 1 1 0 37.98 3