Before	After
74	73
83	77
75	70
88	77
84	74
63	67
93	95
84	83
91	84
77	75

below consist of the number of lifetime surgeries and age of a patient. Use the regression analysis to solve the following questions. (Round to three decimals places)

FINAL-344-Smoking habits.xlsx

1-Find the value of the linear correlation coefficient r , and interpret it .

2- Find the value of the determination coefficient r² , and interpret it .

3-Fill the missing values in the following ANOVA table.

SS Sourse	df	SS	MS	Fstat	P.Value
Regression (Between G)	1	39.068	39.068
Risdual (Within G)	6
Total

4- Find the intercept value , and the slope value

5- Write the estimated regression equation.

A) Y= 39.07 + 38 (X) B) Y= 0.71 + 0.50 (X)

C) Y= 7.28 - 0.18 (X) D) Y= -7.28 + 0.18 (X)

6- What is the expected number of surgeries if a patient is 46 years old?