Question: In 2009 a sample of 200 in store shoppers showed that

In 2009, a sample of 200 in-store shoppers showed that 42 paid by debit card. In 2012, a sample of the same size showed that 62 paid by debit card.
(a) Formulate appropriate hypotheses to test whether the percentage of debit card shoppers increased by more than 5 percent, using α = .10.
(b) Find the p-value.

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  • CreatedAugust 19, 2015
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