ashleestrings1020 ashleestrings1020

01-06-2023
Mathematics

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a study of a local high school tried to determine the mean number of text messages that each student sent per day. The study surveyed a random sample of 141 students in the high school and found a mean of 166 messages sent per day with a standard deviation of 72 messages. Determine a 95% confidence interval for the mean.

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