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PSYCH 625 Week 5 Individual Assignment - Time to Practice ( Parts A , B , C )
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A + Grade Solutions PSYCH 625 Week 5 : Time to Practice and Statistics Project Part A
Some questions in Part A require that you access data from Statistics for People Who ( ThinkThey ) Hate Statistics . This data is available on the student website under the Student Text Resources link .
Use the following data to answer Questions 1a and 1b .
Total no . of problems correct ( out of a possible 20 ) Attitude toward test taking ( out of a possible 100 ) 17 94 13 73 12 59 15 80 16 93 14 85 16 66 16 79 18 77 19 91
a . Compute the Pearson product-moment correlation coefficient by hand and show all your work .
b . Construct a scatterplot for these 10 values by hand . Based on the scatterplot , would you predict the correlation to be direct or indirect ? Why ?
Rank the following correlation coefficients on strength of their relationship ( list the weakest first ): +. 71 +. 36 . 45 . 47 . 62
Use IBM SPSS software to determine the correlation between hours of studying and grade point average for these honor students . Why is the correlation so low ?
Hours of studying GPA 23 12 15 14 16 21