In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the...
In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed. yhat= 10 - 18x1+ 3x2+ 14x3 Also, the following standard errors and the sum of squares were obtained. Sb1= 3, Sb2= 6, Sb3= 7, SST = 4800 & SSE = 1296. At the 5% level, the coefficient of x1?
Select one:
a. cannot be tested, because not enough information is provided
b. should be estimated again, because it is incorrect in the above equation
c. is significant
d. is not found to be significant.
e. None of the answers are correct
Homework Answers
Add Answer to:
In a regression analysis of a first-order model involving 3
predictor variables and 25 observations, the...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û =...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û = 10 - 5X1 + 4X2 +8.6X3 Also, the following standard errors and the sum of squares were obtained. Sb1 = 4 Sb2 = 2 Sb3 = 7 SST = 4,800 SSE = 1,296 When we increase X1 by 2 units and hold other things constant, Y on average will increase by 36 units U None of the rest increase by 5 units decrease by...
Question: Comment on the goodness of fit of the model. The estimated regression equation for a...
Question: Comment on the goodness of fit of the model. The estimated regression equation for a model involving two independent variables and 65 observations is: yhat = 55.17+1.1X1 -0.153X2 Other statistics produced for analysis include: SSR = 12370.8, SST = 35963.0, Sb1 = 0.33, Sb2 = 0.20.
6. In a regression model involving 46 observations, the following estimated regression equation was obtained. û...
6. In a regression model involving 46 observations, the following estimated regression equation was obtained. û = 17+4X1 - 3X2 + 8X3 +5X4 + 8Xs For this model, SST = 3410 and SSE = 510. a. Compute the coefficient of determination. b. Perform an F test and determine whether or not the regression model is significant
Question: Compute F and use it to test whether the overall model is significant using a...
Question: Compute F and use it to test whether the overall model is significant using a p-value (α = 0.05). The estimated regression equation for a model involving two independent variables and 65 observations is: yhat = 55.17+1.1X1 -0.153X2 Other statistics produced for analysis include: SSR = 12370.8, SST = 35963.0, Sb1 = 0.33, Sb2 = 0.20.
In a multiple regression model involving 44 observations, the following estimated regression equation was obtained. ŷ=...
In a multiple regression model involving 44 observations, the following estimated regression equation was obtained. ŷ= 29 + 18x1 + 43x2 + 87x3 For this model, SSR = 600 and SSE = 400. The F statistic for the above model is 10 60 400 600
In a regression analysis involving 30 observations, the following estimated regression equation w...
In a regression analysis involving 30 observations, the following estimated regression equation was obtained. y=17.6+3.8x1-2.3x2+7.6x3+2.7x4 For this estimated regression equation SST= 1805 and SSR=1756. a. At a= 0.05 , test the significance of the relationship among the variables. SSE=_________________ (to 1 decimal, if necessary) MSR=________________ (to 1 decimal, if necessary) MSE=+_______________ (to 2 decimals, if necessary) What is the value of the F test statistic (to 1 decimal)? _______________ What is the p-value? - Select your answer -less than .01,between...
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4...
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4 - 3x2 + 8x3+8X For this model SSR = 700 and SSE - 100. The computed Fstatistic for testing the significance of the above model is 43.75 7.00 50.19 0.875
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained....
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained. 17.6+3.8z-2.3z +7.6z, +2.7z For this estimated regression equation SST- 1805 and SSR- 1,764. a. At a 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimal if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table 4 in Appendix B. What is...
In a multiple regression analysis involving 8 independent variables and 165 observations, SST = 650 and...
In a multiple regression analysis involving 8 independent variables and 165 observations, SST = 650 and SSE = 247. The coefficient of determination is equal to what value? (Report your answer as a proportion to 2 decimal places, using conventional rounding rules)
2. A baseball analyst wants to determine which variables are important in predicting a team's wins...
2. A baseball analyst wants to determine which variables are important in predicting a team's wins in a given season. He has collected data related to wins, earned run average (ERA), runs scored, and errors. Analyze the data below: y = #wins X1 = ERA X2 = runs scored X3 = #errors bo = 84 b1 = -18 b2 = 1 b3 = -2 Sb1 = 2.1 Sb2 = .04 Sb3 = 1.1 SSR = 1500 SSE = 646 n...
In a regression analysis involving 36 observations, the following estimated regression equation was developed. û = 10 - 5X1 + 4X2 +8.6X3 Also, the following standard errors and the sum of squares were obtained. Sb1 = 4 Sb2 = 2 Sb3 = 7 SST = 4,800 SSE = 1,296 When we increase X1 by 2 units and hold other things constant, Y on average will increase by 36 units U None of the rest increase by 5 units decrease by...
6. In a regression model involving 46 observations, the following estimated regression equation was obtained. û = 17+4X1 - 3X2 + 8X3 +5X4 + 8Xs For this model, SST = 3410 and SSE = 510. a. Compute the coefficient of determination. b. Perform an F test and determine whether or not the regression model is significant
In a regression model involving 30 observations, the following estimated regression equation was obtained: 17+ 4x4 - 3x2 + 8x3+8X For this model SSR = 700 and SSE - 100. The computed Fstatistic for testing the significance of the above model is 43.75 7.00 50.19 0.875
eBook Video In a regression analysis involving 30 observations, the following estimated regression equation was obtained. 17.6+3.8z-2.3z +7.6z, +2.7z For this estimated regression equation SST- 1805 and SSR- 1,764. a. At a 0.05, test the significance of the relashionship among the variables. SSE (to 1 decimal, if necessary) MSR (to 1 decimal, if necessary) MSE (to 2 decimal if necessary) What is the value of the F test statistic (to 1 decimal)? Use Table 4 in Appendix B. What is...
2. A baseball analyst wants to determine which variables are important in predicting a team's wins in a given season. He has collected data related to wins, earned run average (ERA), runs scored, and errors. Analyze the data below: y = #wins X1 = ERA X2 = runs scored X3 = #errors bo = 84 b1 = -18 b2 = 1 b3 = -2 Sb1 = 2.1 Sb2 = .04 Sb3 = 1.1 SSR = 1500 SSE = 646 n...
Most questions answered within 3 hours.
-
Assuming air has a density of 1.17 g/L and .973 atm what is the
average molar...
asked 8 minutes ago -
A student studying for a vocabulary test knows the meanings of
16 words from a list...
asked 3 minutes ago -
Developmental Biology! Please answer all the questions
7) Mislocalization of oscar to the side of the...
asked 2 minutes ago -
We have two Earths, one as ours and another that is twice
heavier than that of...
asked 10 minutes ago -
At an annual interest rate of 6%, which would you prefer; three
annual year-end cash flows...
asked 9 minutes ago -
1. (40’) In myStack.cpp, implement the member functions of the
class myStack, which is the class...
asked 10 minutes ago -
What do the phenomena of overshadowing, the CS preexposure
effect, and relative validity of cues have...
asked 15 minutes ago -
MnO4^- + C2O4^2- ---->MnO2 +CO3^2- balance in basic media
asked 28 minutes ago -
What is the missing keyword in the program below?
public class Batman {
public static int...
asked 25 minutes ago -
The Southern Oscillation can be best described
as
relative changes between two pressure systems.
variation in...
asked 27 minutes ago -
We predict that learning statistics will increase a student's
IQ. Those not learning statistics have a...
asked 32 minutes ago -
Write a procedure of how you would separate benzoic acid
(acidic), decane (neutral), and adenine (basic)...
asked 32 minutes ago