The manufacturer of a certain brand of aluminum foil claims that the amount of foil on each roll follows a Normal distribution with a mean of 250 ft2 and a standard deviation of 2 ft2. To test this claim, a restaurant randomly selects 10 rolls of this aluminum foil and carefully measures the mean area to be ¯ = 249.6 ft2 Find the probability that the sample mean area is 249.6 ft2 or less if the manufacturer’s claim is true.

0.0228

0.7364

0.5793

0.2643