Test A Score Respondent X Y &n

Test A Score

Respondent X Y x-x ( x-x) ² y-y ( y-y) ² ( x-x) ( y-y)

Jones	77	51	24.8	615.04	7.8	60.84	193.44
Dunn	66	59	13.8	190.44	15.8	249.64	218.04
Dean	41	44	-11.2	125.44	0.8	0.64	-8.96
Hampton	47	34	-5.2	27.04	-9.2	84.64	47.84
Nichols	32	28	-22.2	492.84	-15.2	231.04	337.44

Test B Score

Respondent X Y x-x ( x-x) ² y-y ( y-y) ² ( x-x) ( y-y)

Jones	50	51	-3.4	11.56	7.4	54.76	-25.16
Dunn	38	69	-15.4	237.16	25.40	645.16	-391.16
Dean	58	34	4.6	21.16	-9.6	92.16	-44.16
Hampton	49	36	-4.4	19.36	-7.6	57.76	33.44
Nichols	72	28	18.6	345.96	-15.6	243.36	-290.16

a. Calculate Pearson’s Product Movement Correlation Coefficient (r) for Test A. Show your work. (6 points)

b. Based on the correlation coefficient which you calculated, in two words how would you describe the relationship between the two variables in Test A? (4 points)

c. Calculate Pearson’s Product Movement Correlation Coefficient (r) for Test B. Show your work. (6 points)

d. Based on the correlation coefficient which you calculated, in two words how would you describe the relationship between the two variables in Test B? (4 points)

e. Which test would you select? (2 points) Why? (4 points)

Expert Solution

orchestra answered 1 year ago

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