Multiple Choice
The narrower the confidence interval,the more precise it is.With this in mind,which combination of factors will produce the most precise estimate of the difference between two population means?
A) Two samples of n = 20 and 80% confidence
B) Two samples of n = 20 and 90% confidence
C) Two samples of n = 50 and 80% confidence
D) Two samples of n = 50 and 90% confidence
Correct Answer:
Verified
Correct Answer:
Verified
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