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Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her...

Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 78 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 16.1 and a standard deviation of 2.7. What is the 98% confidence interval for the number of chocolate chips per cookie for Big Chip cookies?

__ < μ < __

math   Statistics-And-Probability   
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Answer #1

Confidence Interval



Lower Limit =
Lower Limit = 15.3737
Upper Limit =
Upper Limit = 16.8263
98% Confidence interval is ( 15.3737 , 16.8263 )

15.3737 < μ < 16.8263

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