14 - 11Homework Answers
Solution :
Given that xi as 1,2,3,4,5,5,6,7,7
yi as 3,4,5,6,7,2,3,2,9
=> The equation of the regression line is y^ = 3.60 + 0.22*x (rounded)
Add Answer to:
14 - 11
The following data were used in a regression study. Observation Nº i &...
The following data were used in a regression study. Obser a. Develop an estimated regression equation...
The following data were used in a regression study. Obser a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number $ (to 2 decimals) 5. choose the corect a plot of the residuals. H. 14 HW Part 2 - Select your answer. Do the assumptions about the error term seem to be satisfied? The assumption that the variance is - Select yo for larger values of Check My Work (3 remaining)
Consider the following data for a dependent variable y and two independent variables, 11 and 12. 175 117 14...
Consider the following data for a dependent variable y and two independent variables, 11 and 12. 175 117 142 211 3 142 211 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to 1. = Predict y if x1 = 35. y = b. Develop an estimated regression equation relating y to 22. Predict y if 22 = 15. c. Develop an estimated regression equation...
Given are five observations for two variables, x and y. xi 3 12 6 20 14...
Given are five observations for two variables, x and
y.
xi
3
12
6
20
14
yi
50
45
55
15
15
(d) Develop the estimated regression equation by computing the
values of b0 and b1 using b1 =
Σ(xi − x)(yi − y)
Σ(xi − x)2
and b0 = y − b1x.
ŷ =
(e) Use the estimated regression equation to predict the value
of y when x = 9.
Observation 1 2 3 4 5 6 7 8...
Consider the following data for a dependent variable y and two independent variables, x1 and x2...
Consider the following data for a dependent variable y and two independent variables, x1 and x2 . x1 x2 y 30 12 95 46 11 108 24 17 113 50 16 178 41 6 95 51 19 176 75 7 170 37 12 117 60 14 142 77 17 212 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to x1. y^ = ___ +...
eBook Given are five observations for two variables, and y. 2 1 13 7 18 Yi...
eBook Given are five observations for two variables, and y. 2 1 13 7 18 Yi 57 46 58 13 16 26 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 2 and y. C. Try to approximate the relationship between 2 and y by drawing a straight line through the data. Only one straight line can be drawn to provide a...
please help me with this problem im stuck The following data were used in a regression...
please help me with this problem im stuck
The following data were used in a regression study. Observation 1 7 9 2 3 4 5 6 2 3 4 5 45 46 46 9 11 8 9 (a) Develop an estimated regression equation for these data. (round your numerical values to two decimal places.) (b) Construct a plot of the residuals. 10 D B 10 0 2 Residuals 0 + 5 8 10 B 10 O O Do the assumptions...
Consider the following data for a dependent variable and two independent variables x1 and x2 ....
Consider the following data for a dependent variable and two independent variables x1 and x2 . x1 x2 y 30 13 94 46 11 109 25 17 113 51 16 179 40 5 95 52 19 175 74 7 171 37 13 118 59 14 142 76 17 211 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to x1 . Predict y if x1=35...
Problem 3-26 The following data were collected during a study of consumer buying patterns: Observation 1...
Problem 3-26 The following data were collected during a study of consumer buying patterns: Observation 1 2 3 4 14 28 43 36 51 52 28 у 70 78 88 77 98 94 86 Observation 8 9 10 11 12 13 19 10 18 23 24 28 y 76 65 72 86 89 89 5 6 7 b. Obtain a linear regression line for the data (Round your intermediate calculations and final answers to 3 decimal places.) y= c. What...
Course NGAGE MINDTAP z and y. z | 10 220 11 24 12 30 21 18 27 equation for the data of the form b...
course NGAGE MINDTAP z and y. z | 10 220 11 24 12 30 21 18 27 equation for the data of the form bo + b z. Comment on the adequacy of this equation for predicting p. Enter negative value as negative number. x (to 2 decimals) R-sq adj (to 1 decimal) (to 1 decimal) Analysis of Variance SOURCE OF MS F-value (to 2 Residual Error Total |%(to 1 decimal) of the variability in y has been explained byz,...
The following data were collected during a study of consumer buying patterns: Observation 1 2 3...
The following data were collected during a study of consumer buying patterns: Observation 1 2 3 4 5 6 7 12 21 44 29 49 46 29 у 78 76 83 81 93 99 85 Observation 8 9 10 11 12 13 13 18 19 17 25 30 у 77 70 69 84 87 86 b. Obtain a linear regression line for the data.(Round your intermediate calculations and final answers to 3 decimal places.) y= + х c. What percentage...
The following data were used in a regression study. Obser a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number $ (to 2 decimals) 5. choose the corect a plot of the residuals. H. 14 HW Part 2 - Select your answer. Do the assumptions about the error term seem to be satisfied? The assumption that the variance is - Select yo for larger values of Check My Work (3 remaining)
Consider the following data for a dependent variable y and two independent variables, 11 and 12. 175 117 142 211 3 142 211 Round your all answers to two decimal places. Enter negative values as negative numbers, if necessary. a. Develop an estimated regression equation relating y to 1. = Predict y if x1 = 35. y = b. Develop an estimated regression equation relating y to 22. Predict y if 22 = 15. c. Develop an estimated regression equation...
Given are five observations for two variables, x and
y.
xi
3
12
6
20
14
yi
50
45
55
15
15
(d) Develop the estimated regression equation by computing the
values of b0 and b1 using b1 =
Σ(xi − x)(yi − y)
Σ(xi − x)2
and b0 = y − b1x.
ŷ =
(e) Use the estimated regression equation to predict the value
of y when x = 9.
Observation 1 2 3 4 5 6 7 8...
eBook Given are five observations for two variables, and y. 2 1 13 7 18 Yi 57 46 58 13 16 26 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 2 and y. C. Try to approximate the relationship between 2 and y by drawing a straight line through the data. Only one straight line can be drawn to provide a...
please help me with this problem im stuck
The following data were used in a regression study. Observation 1 7 9 2 3 4 5 6 2 3 4 5 45 46 46 9 11 8 9 (a) Develop an estimated regression equation for these data. (round your numerical values to two decimal places.) (b) Construct a plot of the residuals. 10 D B 10 0 2 Residuals 0 + 5 8 10 B 10 O O Do the assumptions...
Problem 3-26 The following data were collected during a study of consumer buying patterns: Observation 1 2 3 4 14 28 43 36 51 52 28 у 70 78 88 77 98 94 86 Observation 8 9 10 11 12 13 19 10 18 23 24 28 y 76 65 72 86 89 89 5 6 7 b. Obtain a linear regression line for the data (Round your intermediate calculations and final answers to 3 decimal places.) y= c. What...
course NGAGE MINDTAP z and y. z | 10 220 11 24 12 30 21 18 27 equation for the data of the form bo + b z. Comment on the adequacy of this equation for predicting p. Enter negative value as negative number. x (to 2 decimals) R-sq adj (to 1 decimal) (to 1 decimal) Analysis of Variance SOURCE OF MS F-value (to 2 Residual Error Total |%(to 1 decimal) of the variability in y has been explained byz,...
The following data were collected during a study of consumer buying patterns: Observation 1 2 3 4 5 6 7 12 21 44 29 49 46 29 у 78 76 83 81 93 99 85 Observation 8 9 10 11 12 13 13 18 19 17 25 30 у 77 70 69 84 87 86 b. Obtain a linear regression line for the data.(Round your intermediate calculations and final answers to 3 decimal places.) y= + х c. What percentage...
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