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PSYCH/625 Version 1 Time to Practice � Week Five University of Phoenix Material

Week five material for a psychology course.

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Time to Practice–Week FivePSYCH/625 Version 11Copyright ©2013by University of Phoenix. All rights reserved.PSYCH/625 Version 1 Time to Practice–Week FiveUniversity of Phoenix MaterialTime to Practice–WeekFiveCompleteParts A, B, and C below.Part ASome questions in Part A require that you access data fromStatistics for People Who (ThinkThey) HateStatistics.This data is available on the student website under the Student Text Resources link.1.Usethe followingdata to answer Questions 1a and 1b.Totalno. ofproblemscorrect (out of a possible20)Attitudetowardtesttaking(out of a possible 100)1794137312591580169314851666167918771991a.Compute the Pearsonproduct-moment correlation coefficient by hand and show all your work.Considering, x =total number of correct problems and y=Attitude,we have,𝑛=10,𝑥̅=15.6,𝑦ത=79.7,෍𝑥𝑦=12568,෍𝑥2=2476𝑎𝑛𝑑෍𝑦2=64727Thus,Correlation coefficient =∑𝑥𝑦−𝑛𝑥̅𝑦തඥ(∑𝑥2−𝑛𝑥̅2)(∑𝑦2−𝑛𝑦2)=0.5961b.Construct a scatterplot for these 10 values by hand. Based on the scatterplot, would you predictthe correlation to bedirect or indirect? Why?The scatter plot is given below.

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Document Details

University
University of Phoenix
Course
PSYCH 625
Subject
Psychology

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