You wish to estimate the average weight of frogs in a certain pond. You plan to randomly sample N frogs and estimate their average weight (X ) and construct a 99% confidence interval. Assume the standard deviation () in weight between individual frogs is approximately equal to 3 grams. How large a sample do you need so that the margin of error for your confidence interval is 0.25 grams? Round your answer up to the nearestinteger.

The answer is not, 954, 955, or 956. I already tried those, I just don't know what I am doing wrong