Independent samples t-test. A team of psychologists is testing whether the time of day impacts reaction time. For the experiment, there are two groups created: Group 1 (n= 21) will take a test for reaction time in the morning and Group 2 (n = 21) will take a test for reaction time in the evening. Group 1 had a mean reaction time of M = 22 seconds with SS = 276 and Group 2 had a mean reaction time of M = 28 seconds with SS = 221. Can the team of psychologists conclude that there is a significant difference in the mean reaction times? Test with a = %3D 0.05. a. Conduct a complete hypothesis test b. Compute estimated d c. Give a full APA-style write up of your results d. Do you have to consider a Type I error or a Type II error? Explain

Independent samples t-test. A team of psychologists is testing whether the time of day impacts reaction time. For the experiment, there are two groups created: Group 1 (n= 21) will take a test for reaction time in the morning and Group 2 (n = 21) will take a test for reaction time in the evening. Group 1 had a mean reaction time of M = 22 seconds with SS = 276 and Group 2 had a mean reaction time of M = 28 seconds with SS = 221. Can the team of psychologists conclude that there is a significant difference in the mean reaction times? Test with a = %3D 0.05. a. Conduct a complete hypothesis test b. Compute estimated d c. Give a full APA-style write up of your results d. Do you have to consider a Type I error or a Type II error? Explain

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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A researcher gathered a sample of participants who volunteered for a studying of phobias. She measured anxiety level of participants as they viewed photos of spiders and again when they viewed puppies. Which statistical test is appropriate for this study and why?
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