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 b. c. d. Find the 95% confidence Interval. Interpret the interval in context. Find the error bound of the interval. Suppose Jose, another donut maker, states that his jelly donuts have a mean baking time of 18 minutes. Is there evidence at the 95% confidence level, to support the claim that the mean baking times for all Jerry's and Jose's jelly donuts are different? Justify