Mathematics, 27.09.2019 13:00 lorrainelopez

In a srs of 80 teenagers, the average number of text messages received per day is found to 50. if the standard deviation of number of texts received is known to be σ = 12, find the 95% confidence interval for the number of text messages received.

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In a srs of 80 teenagers, the average number of text messages received per day is found to 50. if th...

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