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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