2. The following correlation coefficients, (r values), and P-values were generat

Question

2. The following correlation coefficients, (r values), and P-values were generated by StatCrunch. Each of the columns X1, X2, X3, X4, Y1, Y2, Y3, and Y4 have the same number of data items in them. Correlation of X1 and Y1--0.564, P-value 0.036 Correlation of X2 and Y2 0.473, P-value 0.158 Correlation of X3 and Y3 0.856, P-value 0.002 Correlation of X4 and Y4-0.972, P-value 0.000 Use this information to answer each question that follows! a. The strongest association is between which pair of variables? Underline one: i. X1 and Y1 ii. X2 and Y2 iii. X3 and Y3 iv. X4 and Y4 b. The weakest correlation exists between which pair of variables? Underline one: i, X1 and Y1 il. X2 and Y2 iii. X3 and Y3 i. X4 and Y4 c. The relationship between X1 and Y1 is Underline one: i. positive ii. negative d. There is a stronger correlation between X2 and Y2 than between X1 and Y1? Underline one: i. true ii. false e. For which pair would it not be appropriate to perform regression analysis to produce the equation of the "line of best fit" for the relationship, as indicated by the P-value? Underline one: i. X1 and Y1 ii. X2 and Y2 ii. X3 and Y3 iv. X4 and Y4

Explanation / Answer

SolutionA:

the strongest association between X4 and Y4

r=-0.972

strong negative relationship

SolutionB:

Weakest correlation is X2 and Y2

r=0.473

SolutionC:

the relationship between X1 and Y1 is

r=-0.564

ANSWER:negative

Solutiond:

FALSE

because r=0.473 between X2 and Y2(moderate positive relationship)

r between X1and Y1 is -0.564(strong relationship)

SoutionE:

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