Multiple Choices
(Choose 1 answer)
A manager of the credit department for an oil company would like to determine whether the mean monthly balance of credit card holders is equal to $75. An auditor selects a random sample of 100 accounts and finds that the mean owed is $83.40 with a sample standard deviation of $23.65. If you wanted to test whether the mean balance is different from $75 and decided to REJECT the null hypothesis, what conclusion could you reach?
A. There is not evidence that the mean balance is $75.
B. There is not evidence that the mean balance is not $75.
C. There is evidence that the mean balance is $75.
D. There is evidence that the mean balance is not $75.
