It has become more common for shoppers to “comparison shop” using the Internet. Respondents to a Pew survey in 2013 who owned cell phones were asked whether they had, in the past 30 days, looked up the price of a product while they were in a store to see if they could get a better price somewhere else. Here is a table of their responses by income level.
a) Find the conditional distribution (in percentages) of in-come distribution for those who do not compare prices on the Internet.
b) Find the conditional distribution (in percentages) of income distribution for shoppers who do compare prices.
c) Create a graph comparing the income distributions of those who compare prices with those who don’t.
d) Do you see any differences between the conditional distributions? Write a brief summary of what these data show about Internet use and its relationship to income.

  • CreatedMay 13, 2015
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