1. Suppose that Jerry (a baker) wants to find a 95% Confidence Interval for the mean baking time for all of his jelly donuts. He takes a random sample of 40 jelly donuts over the course of several weeks. He found that the average baking time of the sample was 19.2 minutes with a standard deviation of 1.8 minutes. a. Find the 95% confidence Interval. b. Interpret the interval in context. c. Find the error bound of the interval.

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