A researcher wanted to know if friendship might affect simple sales. Two groups of students were selected. One was asked to assume the price of a particular phone if they bought it from a friend they expect to meet again. The other was asked to imagine they are buying the same phone from kijiji and state what price they would offer. The approximate prices are provided in the table. Was there a difference in the price of the phone based on the availalbe information?

a. Develop the appropriate hypotheses for this problem.

b. With an ?=0.10., test the hypothesis.

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