Olive weights are classified according to a unique set of ad

Olive weights are classified according to a unique set of adjectives implying great size. For example, the mean weight of olives classified as \"Colossal\" is 7.7 gm. Suppose a particular company\'s crop of \"Colossal\" olives is approximately Normally distributed with a mean of 7.7 gm and a standard deviation of 0.2 gm. Which of the following represents the probability that the mean weight of a random sample of 3 olives from this population is greater than 8 gm? P(z > 8 - 7.7/0.2/root 3) P(z > 7.7 - 8/0.2/root 3) P(z 8 - 7.7/squareroot (0.2)(0.8)/root 3) P(z

Solution

(A) is correct.