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In a random sample of 81 teenagers, the average number of texts handled in a day was 50 with a standard deviation of 15. What
In a random sample of 81 teenagers, the average number of texts handled in a day was 50 with a standard deviation of 15. What is the 95% confidence interval for the average number of texts handled by teens daily
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A Survey Of Mathematics With Applications
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
11th Edition
0135740460, 978-0135740460
