Researchers want to examine the relationship between systolic and diastolic blood pressure. Systolic pressure is the independent or explanatory variable. Diastolic pressure is the dependent or response variable. Researchers collect systolic and diastolic blood pressure measurements for 40 women. They choose α = 0.05 level to test their results. 1) What is the value for the correlation between systolic blood pressure and diastolic blood pressure?
A) 0.53
B) 0.62
C) 0.79
D) 0.06

2) What is the regression equation?
A) ŷ = 32.8538x + 1.1560
B) x′ = 1.1560x + 32.8538
C) x′ = 8.3079x + 0.5335
D) ŷ = 0.5335x + 8.307

3) What is the best predicted value for diastolic blood pressure given that a woman has a systolic level of 100?
A) 148.45
B) 884.15
C) 61.66
D) 57.78

4) How do you interpret this finding? For every one unit increase in systolic blood pressure, there is a corresponding _ unit _ in diastolic blood pressure.
A) 0.5335; increase
B) 32.8538; decrease
C) 1.156; decrease
D) 8.308; increase