An accounting firm is planning for the next tax preparation season. From last year's returns, the firm
Collects a systematic random sample of 100 filings. The 100 filings showed an average preparation
Time of 90 minutes with a standard deviation of 140 minutes.
What is the standard error of the mean?
A) 14 minutes
B) 140 minutes
C) 1.4 minutes
D) 90 minutes
Correct Answer:
Verified
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