What percentage of payments was made using plastic

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Reference no: EM131456773

Question: The American Bankers Association collects data on the use of credit cards, debit cards. personal checks, and cash when consumers pay for in-store purchases (The Wall Street Journal. December 16.21X13). In 1999, the following usages were reported.

A sample taken in 2003 found that for 220 in-stores purchases. 46 used a credit card. 67 used a debit card. 33 used a personal check, and 74 used cash.

a. At α = .01. can we conclude that a change occurred in how customers paid for in-store purchases over the four-year period from 1999 to 2003? What is the p-value?

b. Compute the percentage of use for each method of payment using the 2003 sample data. What appears to have been the major change or changes over the four-year period?

c. In 2003. what percentage of payments was made using plastic (credit card or debit card)?

Reference no: EM131456773

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