Karen wants to advertise how many chocolate chips are in each big chip cookie at her bakery. She randomly selects a sample of 47 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 18.8 and a standard deviation of 1.7.
a) What is the 90% confidence interval for the number of chocolate chips per cookie for big chip cookies? Enter answer accurate to one decimal place
b)Interpretation of the confidence interval
Karen can advertise with _____ confident that, on average, there are between __ and __ chocolate chips in a big chip cookie at her bakery.
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