Project Description:

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. in 1999, the following usages were reported.

in-store purchase percentage
credit card 22
debit card 21
personal check 18
cash 39

a sample taken in 2003 found that 220 in-store purchases, 46 used a credit card, 67 used a debit card, 33 used a personal check, and 74 used cash.
a. at a = 0.01, 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 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)?
Skills Required:
Project Stats:

Price Type: Negotiable

Total Proposals: 3
1 Current viewersl
29 Total views
Project posted by:


Proposals Reputation Price offered
  • 5.0
    44 Jobs 43 Reviews
    $5 in 0 Day
  • 0.0
    0 Jobs 0 Reviews
    $0 in 0 Day
  • 4.8
    552 Jobs 389 Reviews
    $0 in 0 Day