Question
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
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 $102. An auditor selects a random sample of 32 accounts and finds that the mean owed is $111.5 with a sample standard deviation of $23.15. Suppose you wanted to conduct a test to determine whether the auditor should conclude that there is evidence that the mean balance is different from $102.If the test is conducted at the 5% level of significance, what critical value (value in the t table) should you use?
Select one:
1.696.
1.694.
2.040.
1.645.
2.037.
1.960.
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