For the following studies, indicate whether a repeatedmeasures t test is the appropriate analysis. Explain your answers. a. A researcher is comparing the amount of time spent playing video games each week for college males versus college females. b. A researcher is comparing two new designs for cell phones by having a group of high school students send a scripted text message on each model and measuring the difference in speed for each student. c. A researcher is evaluating the effects of fatigue by testing people in the morning when they are well rested and testing again at midnight when they have been awake for at least 14 hours.

For the following studies, indicate whether a repeatedmeasures t test is the appropriate analysis. Explain your answers. a. A researcher is comparing the amount of time spent playing video games each week for college males versus college females. b. A researcher is comparing two new designs for cell phones by having a group of high school students send a scripted text message on each model and measuring the difference in speed for each student. c. A researcher is evaluating the effects of fatigue by testing people in the morning when they are well rested and testing again at midnight when they have been awake for at least 14 hours.

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter7: Distance And Approximation

Section7.3: Least Squares Approximation

Problem 31EQ

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