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The following data were obtained in a study of the relationship between diastolic blood pressure (Y)...

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Statistics

The following data were obtained in a study of the relationshipbetween diastolic blood pressure (Y) and age (X) for boys 5 to 13years old.

X

5

8

11

7

13

12

12

6

Y

63

67

74

64

75

69

90

60

Fit a simple linear regression model to the data and plot theresiduals against the fitted values.

Omit case 7 and refit the model. Plot the residuals versus thefitted values and compare to what you got in (a).

Using the fitted model from (b), obtain a 99% prediction intervalfor a new Y observation at X = 12. Does observation y7fall outside this prediction interval? What is the significance ofthis?

Answer & Explanation Solved by verified expert
3.8 Ratings (744 Votes)
ANSas per given dataa Regression analysis performed inMinitabRegression Analysis y versus xThe regression equation isy 487 233xPredictor Coef SECoef T PConstant 486677887617 0001x23333 08135287 0028S 668331RSq 578RSqadj 508Plot of Ei vs XiFrom the    See Answer
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