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 were to conduct a test to determine whether the auditor should conclude that there is evidence that the
mean balance is different from $75, which test would you use?
A) Z test of a population mean B) t test of population mean
C) Z test of a population proportion D) t test of a population proportion
B
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Based on Hofstede's model, which of the following best describes the culture of the U.S.?
a. The U.S. is an individualistic culture where people are long-term oriented, value achievement and are highly competitive. b. The U.S. culture places a high value on individuals and achievement and tends to be egalitarian and short-term orientated with low power distance. c. The U.S. is highly competitive, power oriented, and focused on improving social justice. d. The U.S. culture is high on context, power, achievement, and competitiveness.