The mean of the numbers of chocolate chips in a sample of 40 Chips Ahoy regular cookies is 23.95 and the standard deviation is 2.55. Construct a 99% confidence interval estimate of the mean number of chocolate chips in all such cookies.  Construct a 95% confidence interval as stated in the question. Use (    ) and two decimal places.

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The mean of the numbers of chocolate chips in a sample of 40 Chips Ahoy regular cookies is 23.95 and the standard deviation is 2.55. Construct a 99% confidence interval estimate of the mean number of chocolate chips in all such cookies. 

Construct a 95% confidence interval as stated in the question. Use (    ) and two decimal places.

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