Population standard deviation of the lifetime


If the population standard deviation of the lifetime of washing machines is estimated to be 900 hours, how large a sample must be taken in order to be 97% confident that the margin of error will not exceed 100 hours?

Solution Preview :

Prepared by a verified Expert
Basic Statistics: Population standard deviation of the lifetime
Reference No:- TGS0689508

Now Priced at $10 (50% Discount)

Recommended (96%)

Rated (4.8/5)