A bank is planning to raise the fees that it charges customers. It is concerned that the increase will cause some customers to move to other banks. It surveyed 300 customers to get their reaction to the possible increase.
(a) Identity whether the data are cross sectional or a time series.
(b) Give a name to each variable and indicate it the variable is categorical, ordinal, or numerical (it a variable is numerical, include its units it possible).
(c) List any concerns that you might have tor the accuracy of the data.