SOLUTION: Which formula do you use to find the mean (Central Limit Theorem) I am not sure how to calculate this. Can you show the steps to the calculation? Thanks It is known tha

Question 1040609: Which formula do you use to find the mean (Central Limit Theorem) I am not sure how to calculate this. Can you show the steps to the calculation?
Thanks

It is known that in the absence of treatment, 72% of the patients with a certain illness will improve. The Central Limit Theorem tells us that the percentages of patients in groups of 500 that improve in the absence of treatment are approximately normally distributed. Find the mean of the normal distribution given by the Central Limit Theorem.
A)72%
B)59%
C)34%
D)68%

Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
The answer is A) 72%, since the mean of the population is the mean of the sample for samples of n > 30.

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