Babcock and Marks (2010) reviewed survey data from 2003-2005, and obtained an average of u = 14 hours per week spent studying by full-time students at 4-year colleges in the United States. To determine whether this average has changed in the past 10 years, researcher selected a sample of n = 64 of today's college students and obtained an average of M = 12.5 hours. If the standard deviation for the distribution is o = 4.8 %3D %3D hours per week, does this sample indicate a significant change in the number of hours spent studying? Use a two-tailed test with a = .05.
Babcock and Marks (2010) reviewed survey data from 2003-2005, and obtained an average of u = 14 hours per week spent studying by full-time students at 4-year colleges in the United States. To determine whether this average has changed in the past 10 years, researcher selected a sample of n = 64 of today's college students and obtained an average of M = 12.5 hours. If the standard deviation for the distribution is o = 4.8 %3D %3D hours per week, does this sample indicate a significant change in the number of hours spent studying? Use a two-tailed test with a = .05.
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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