Answered: Babcock and Marks (2010) reviewed…

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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7. Babcock and Marks (2010) reviewed survey data from 2003–2005, and obtained an average of mu = 14hor 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 sigma = 4.8 hours per week, does this sample indicate a significant change in the number of hours spent studying? Use a two-tailed test with alpha = .05 .

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