An auditor for a large oil corporation has taken a random sample of monthly credit card charges for 32 individual (non-corporate) accounts. She found a mean of $81.76 . Assume that the population standard deviation is 48.2 . A 98% confidence interval estimate for the population mean of individual credit card charges would be:
a. 81.76 ± 19.89.
b. 81.76 ± 16.72.
c. 81.76 ± 112.94.
d. 81.76 ± 22.0.
e. 81.76 ± 2.33.
A
Business
You might also like to view...
Explain the advantages of an intranet to a company
What will be an ideal response?
Business
The classification and normal balance of the drawing account is
A) an expense with a credit balance B) an expense with a debit balance C) a liability with a credit balance D) owner's equity with a debit balance
Business
What are some warning signs of possible workplace violence?
What will be an ideal response?
Business
The purpose of pleadings is to give notice and to establish the issues of fact and law that the parties dispute
a. True b. False Indicate whether the statement is true or false
Business