b. Find P(X + Y > 2/3) The follow The data were collected on a simple random sam

Question

b. Find P(X + Y > 2/3) The follow The data were collected on a simple random sample of 20 patients with hypertension. The variables are Y = mean arterial blood pressure (mm Hg) - the dependent variable, and the independent variable are: X_1 = age (years) X_2 = weight (kg) The computer printout are: Fill the five blanks in the ANOVA table Which of the two independent variable is significant for the regression, and how did you determine that? Find the final model. How do you interpret R_square 0.978?

Explanation / Answer

ANOVA table:

X1 is significant while X2 is not asp vlaue for x1 is significant while that for X2 is insignificanct

finaal model Y =-10.02+0.0538 X1

R square 0.978 reflect that 97.8% variation in mean arterial blood pressure can be explained by variation in age

Source of variation df SS MS F regression 2.000 547.63 273.815 376.302 residual 17.000 12.37 0.728 total 19.000 560

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