A curious high school student has asked for help interpreting data they found on how many licks it takes to reach the Tootsie Roll center of a Tootsie Pop. From a sample of 41 hungry high school students, you find the average number of licks is 261. The reported standard deviation is 16 licks. For a 90% confidence level, what is the upper bound in number of licks of the confidence interval to reach the Tootsie Roll center of a Tootsie Pop?

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