About how large would the sample size have to be to cut the


A survey was conducted of the age? (in years) of 30 randomly selected customers. The mean was 32.78 years and the standard deviation was 11.17 years.

?a) How large would the sample size have to be to cut the margin of error in? half?

?b) About how large would the sample size have to be to cut the margin of error by a factor of 5??

Solution Preview :

Prepared by a verified Expert
Basic Statistics: About how large would the sample size have to be to cut the
Reference No:- TGS02455889

Now Priced at $10 (50% Discount)

Recommended (97%)

Rated (4.9/5)