More time on the Internet: A researcher polled a sample of 1097 adults in the year 2010, asking them how many hours per week they spent on the Internet. The sample mean was 9.42 with a standard deviation of 13.23 . A second sample of 1031 adults was taken in the year 2012 . For this sample, the mean was 10.63 with a standard deviation of 14.47. Assume these are simple random samples from populations of adults. Can you conclude that the mean number of hours per week spent on the Internet increased between 2010 and 2012? Let u1 denote the mean number of hours spent on the Internet in 2010 . Use the a=0.05 level and the p-value method to solve. State the p-value _______________-
More time on the Internet: A researcher polled a sample of 1097 adults in the year 2010, asking them how many hours per week they spent on the Internet. The sample mean was 9.42 with a standard deviation of 13.23 . A second sample of 1031 adults was taken in the year 2012 . For this sample, the mean was 10.63 with a standard deviation of 14.47. Assume these are simple random samples from populations of adults. Can you conclude that the mean number of hours per week spent on the Internet increased between 2010 and 2012? Let u1 denote the mean number of hours spent on the Internet in 2010 . Use the a=0.05 level and the p-value method to solve. State the p-value _______________-
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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More time on the Internet: A researcher polled a sample of 1097 adults in the year 2010, asking them how many hours per week they spent on the Internet. The sample mean was 9.42 with a standard deviation of 13.23 . A second sample of 1031 adults was taken in the year 2012 . For this sample, the mean was 10.63 with a standard deviation of 14.47. Assume these are simple random samples from populations of adults. Can you conclude that the mean number of hours per week spent on the Internet increased between 2010 and 2012? Let u1 denote the mean number of hours spent on the Internet in 2010 . Use the a=0.05 level and the p-value method to solve.
State the p-value _______________-
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