Question: The time it takes to assemble an electronic component is normally distributed with a mean of 17.2 minutes and a standard deviation of 3.1 minutes.

The time it takes to assemble an electronic component is normally distributed with a mean of 17.2 minutes and a standard deviation of 3.1 minutes.

(a) The probability is 95% that it will take at least how long to assemble a component?

(b) What is the probability that it will take at least 16 minutes to assemble a component?

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