Multiple Choice
For a more accurate determination, top management wants to estimate the average number of hours volunteered per month by their professional staff to within one hour with 99% confidence. How many randomly selected professional employees would they need to sample?
A) 56
B) 120
C) 33
D) 25
E) 90
Correct Answer:

Verified
Correct Answer:
Verified
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Q27: Suppose 40 professional employees are randomly selected.
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Q95: Metro Bus System<br>The management of the Metro