A psychologist would like to examine the effects of caffeine consumption on the activity level ofpreschool children. Three samples of children are selected with n = 5 in each sample. One groupgets no caffeine, one group gets a small dose, and the third group gets a large dose. Thepsychologist records the activity level for each child during 50 minutes of unstructured play.Determine whether these data indicate significant differences among the three groups using a = .05.Your answer should include hypotheses, critical boundary, F-score, and results including notation,decision, and explanation. Calculate and interpret effect size if appropriate. Indicate whether post-hoc test results should be calculated (i.e., "yes, include" or "no, do not include").No caffeineSmall doseLarge doseT= 15T= 20T= 25G = 60SS = 16SS = 12SS = 20Ex2 = 298

The F - score formula in the ANOVA test is given by F-score=SSbetweenK-1SSerrorN-K Where,…

Answered: A psychologist would like to examine…

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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Similar questions

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Mr. Friend noticed that meetings tended to start late when there were a lot of people in attendance and decided to study that relationship. He collecting data on the number of people who were attending each meeting and the number of minutes late that the meeting started. He noticed there was one point that seemed unusual, so he removed it from the data set. What is true about the point that was removed? a. the point is not unusualb. It is an influential observationc. It has the largest residuald. The slope changes little when the point is removedSelected:e. The correlation is lower with the removal of the point
Use alpha = .05. Travel Experience and Knowledge of Geography: Suppose you are interested in the relationship between travel experiences and knowledge of geography. You give 10 subjects a 15-item quiz on North American geography and ask each how many states and Canadian provinces they have visited. Subject Travel Score Knowledge Score 1 4 10 2 6. 15 3 7 8. 4 9 8. 7 12 10 7 14 15 8 15 13 15 15 10 17 14 Is there a relationship between travel experience and knowledge of geography? Be sure to state hypotheses, calculate the statistic by hand showing all of your work and provide all other related information and write your conclusion in APA format. Attach SPSS output with relevant portions highlighted and relevant comments marked on the output.
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he level of cretaine phosphokinase (CPK) in blood samples measures the amount of muscle damage for athletes. At Jock State University, the level of CPK was determined for each of 25 football players and 15 soccer players before and after practice. The two groups of athletes are trained independently. The data summary is as follows : For football players: Data for Football players n=25 Before Practice After Practice Difference (Before-After) Mean 254.73 225.6 29.13 Standard deviation 115.5 132.6 21.00 For soccer players: Data for Soccer players n=15 Before Practice After Practice Difference (Before-After) Mean 177.1 173.8 3.3 Standard deviation 60.7 64.4 6.88 Assume that all the data above are normal Test the claim that the mean CPK level has DECREASED for soccer players AFTER exercise (compared to the mean BEFORE exercise), using α=0.10. AFTER practice, do football players have a DIFFERENT mean CPK values compared to soccer players? Test this claim by…
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Statistics Question
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