Question: 7. A candy maker produces mints that have a label weight of 20 grams. Because of variations in the manufacturing process, the candies have a

7. A candy maker produces mints that have a label weight of 20 grams. Because of variations in the manufacturing process, the candies have a mean weight of 20 grams and a standard deviation of 0.25 grams, normally distributed.

a. If a customer samples 25 mints, what is the probability that the mean weight is less than 19.88 grams?

b. What will be the value which the mean weight of the 25 candies will exceed only 10% of the time?

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