Which of the following is an appropriate sample for a study interested in the average interest rates of home loans from a national bank?
a. thousands of loan rates from all branches in the Midwest
b. loan rates from ten of your neighbors who bank at the local branch
c. a random sample of one thousand loan rates
d. all loan rates from all branches in one town and a random sample of loan rates from other areas of branches
e. less than one hundred loan rates from one brain in a town
Answer: a random sample of one thousand loan rates
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