in a regression relationship between X and Y, if a = 2 and b = 4,...
in a regression relationship between X and Y, if a = 2 and b = 4, what would the value of Y be when X = 1?
Homework Answers
The regression equation is,
Y = a + b X
For, a = 2 and b = 4
Y = 2 + 4X
When X = 1,
Y = 2 + 4 * 1 = 6
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in a regression relationship between X and Y, if a = 2 and b =
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Given are five observations for two variables, x and
y.
xi
1
2
3
4
5
yi
3
8
4
10
15
(a)
Develop a scatter diagram for these data.
1 2 3 4 5 g 2 N to Go 4 1 2 0 1 3 4 5 6 1 2 3 (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? There appears to be a negative linear relationship between x...
are the assumptions behind any multiple regression model? (b). For a multiple regression model Y-Bo + βιΧ. + β2X2 +β3Xs + € where is the error term, to represent the relationship between Y and the four X- variables. We got the following results from the data: Source Sum of Squares degrees of freedom mean squares Regression 1009.92 Residual Total 2204.94 34 And also you are given: Variable X1 Σ.tx-xr 123.74 72.98 12.207 -Pr values -11.02 5.13 X2 X3 Y-intercept is...
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2. In a typical simple linear regression model, explore the relationship between the expected value of change in the response variable y and the value of the regressor x changed by 20 or 40 units. Describe the condition or assumption, if any, to meet for such exploration. 3. In a multiple linear regression model where x1 and x2 are two regressors. Explore the relationship between the expected value of change in the response variable y and the value of the...
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37 tt ts known that the vartable Y and e quanticative relationship between the dependent 2. the independent variables X ane z is A Nake a Table and draw the graph of the relationshdp betveem Y and x when the numerical value of Z is: B. Make a Table and draw the graph of the relationship betveen Y and 2 when the numerical value of x is: b. Х-+10. 2, It is known that the quantitative relationship between the dependent...
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