To find out how much fat is in a common hot dog, a nutritionist recorded the amount of fat in 100 grams of a random sample of 9 brands as follows: 5 5.5 6 Assume that the underlying distribution of fat in grams is normal. a. Find the mean decimal places. 4 b. Find the 95% confidence interval, your answer to two decimal places. 6.25 and the standard deviation 6.75 7 7.758 8 of the amount of fat. Round your answer to two ), for the average amount of fat in the hot dog. Round

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