Suppose that the average time spent per day with digital media several years ago was 3 hours and 16 minutes. For last year, a random sample of 20 adults in a certain region spent the numbers of hours per day with digital media given in the accompanying table. Preliminary data analyses indicate that the t-interval procedure can reasonably be applied. Find and interpret a 90% confidence interval for last year's mean time spent per day with digital media by adults of the region. (Note: x=5.16 hr and s=2.20 hr.) The 90% confidence interval is from enter your response () hour(s) to () hour(s).
Suppose that the average time spent per day with digital media several years ago was 3 hours and 16 minutes. For last year, a random sample of 20 adults in a certain region spent the numbers of hours per day with digital media given in the accompanying table. Preliminary data analyses indicate that the t-interval procedure can reasonably be applied. Find and interpret a 90% confidence interval for last year's mean time spent per day with digital media by adults of the region. (Note: x=5.16 hr and s=2.20 hr.) The 90% confidence interval is from enter your response () hour(s) to () hour(s).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose that the average time spent per day with digital media several years ago was 3 hours and 16 minutes. For last year, a random sample of 20 adults in a certain region spent the numbers of hours per day with digital media given in the accompanying table. Preliminary data analyses indicate that the t-interval procedure can reasonably be applied. Find and interpret a 90% confidence interval for last year's mean time spent per day with digital media by adults of the region. (Note: x=5.16 hr and s=2.20 hr.)
The 90% confidence interval is from enter your response () hour(s) to () hour(s).
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