A company produces tortillas that are supposed to have an average diameter of 6 inches. Each of the tortillas the machine produces is slightly different, but the distribution diameters is approximately normal with a mean of 6.05 inches and a
standard deviation of 0.2 inches. A bag that contains 10 tortillas claims the diameter of the tortillas in the bag is 6 inches.
Suppose the 10 tortillas in the bag represent a random selection of all tortillas produced by the machine. What is the
approximate probability that the mean diameter of the 10 tortillas in the bag is less than the claim of 6 inches?
a
OOO
0.0062
0.4013
b
с
0.2146
Od
0.7854