Assume the cans of coke

Question

Assume that cans of Coke are filled so that the actual amounts are normally distributed with a mean of 12.00 oz and a standard deviation of 0.11 oz Find the probability that a sample of 5 cans will have a mean amount of at least 12.09 oz.

Answer 1

compute z-score = (12.09-12)/(0.11/sqrt(5))

then find P(z > z-score) from standard normal probability table.