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uon wants to advertise how many chocolate chips are in each Big Chip cookie at his bakery. He randomly selects a sample of 67 cookies

uon wants to advertise how many chocolate chips are in each Big Chip cookie at his bakery. He randomly selects a sample of 67 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 16.8. The population standard deviation is 1.2. What is the 90% confidence interval for the number of chocolate chips per cookie for Big Chip cookies? Assume the data is from a normally distributed population. Round answers to 3 decimal places where possible

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