confidence interval?

Question

Given the same sample statistics, which level of confidence will produce the narrowest confidence interval?

10 Points to best answer.

a. 90
b. 95
c. 85
d. 75

Answer 1

How about thinking this through for yourself.

If Sue says the population mean is between 30 gms and 32 gms

and Bob says the population mean is between 10 gms and 53 grams

in which interval are you the most confident that it encloses the population mean? the narrower one or the wider one?