Question: The marketing team of a major electronics retailer is interested in running a promotion in the Westchester, NY area. This program provides incentives for trading in old laptop computers in the form of credit that may be used toward buying a new laptop computer. In order to predict the success of this promotion, the marketing team needs to estimate the average age of the laptops that the residents in this area own. They expect the number to be 3.5 years-42 months-or older and therefore believe that the program will be highly successful. To confirm the estimate, the managers have asked you to conduct a marketing research. You have collected a sample from 200 laptop owners and have entered the data in file LaptopAge.sav.
a. State the null and alternative hypotheses
b. Open the file using SPSS
c. Test the basic statistics (e.g., mean, median, standard deviation, etc.)
d. Draw the appropriate graphs and get a sense of the data
e. State the null and alternative hypotheses
f. Test the marketing teams' expectation that the average age of laptop computers people own is 42 months.
g. What will you report and recommend to the managers?
h. What questions do you have about the sampling process in this study in order to ensure the representativeness of the sample?