Suppose we have the following values for variables X (independent) and Y (dependent)
_ _
Σ(X – X)(Y – Y) = -630
_
Σ(X – X)2 = 168
SSE = 1225 SSR = 2362.5
What is the value of the slope coefficient for the simple regression equation (round to two decimal places)?
The value of the slope coefficient for the simple regression equation
=-3.75
Suppose we have the following values for variables X (independent) and Y (dependent) _ _ Σ(X...
Question 7 (1 point) Suppose we have the following values for variables X (independent) and Y (dependent) IX-X)(y-7) --630 Z(X - x)2 = 168 SSE = 1225 SSR = 2362.5 What is the value of R-Square (round to four decimal places)? Question 8 (1 point) Suppose we have the following values for variables X (independent) and Y (dependent) EIX-XIY-7)=-630 IIX Xj2 = 168 SSE = 1225 SSR = 2362.5 What is the value of the slope coefficient for the simple...
Suppose we have the following values for variables X (independent) and Y (dependent) _ _ Σ(X – X)(Y – Y) = -630 _ Σ(X – X)2 = 168 SSE = 1225 SSR = 2362.5 If n = 8, what is the value of the standard error for the simple regression model (round to three decimals)?
The data shown below for the dependent variable, y, and the independent variable, x, have been collected using simple random sampling. X 10 15 11 19 18 17 5 17 18 y 9070 30 8020 30 5060 40 40 a. Develop a simple linear regression equation for these data. b. Calculate the sum of squared residuals, the total sum of squares, and the coefficient of determination c. Calculate the standard error of the estimate. d. Calculate the standard error for...
For INTERCEPT() and SLOPE() functions, do we place x values or y values first in the parentheses? For CORREL() function, do we place x values or y values first in the parentheses? What is the difference in meaning between y and y_hat? What does the regression model minimize? SSE or SSR or SST? Variation in Y = Time explained by X = Miles is SST, SSR or SSE? Variation in Y = Time not explained by X = Miles is SST,...
The data shown below for the dependent variable, y, and the
independent variable, x, have been collected using simple random
sampling.
x y
11 100
13 80
15 80
12 90
20 60
17 60
15 70
13 90
15 90
17 80
a. Complete the linear regression equation below Round to one decimal place as needed.) b. Calculate the sum of the squared residuals. SSE-L (Round to the nearest whole number as needed) What is the total sum of...
Consider the following data for a dependent variable y and two independent variables, 21 and 22; for these data SST = 15,196.1, and SSR = 14,180.8. Round your answers to three decimal places. a. Compute R2 b. Compute R2 c. Does the estimated regression equation explain a large amount of the variability in the data? - Select your answer -
Suppose we have the following values for a dependent variable, Y, and three independent variables, X1, X2, and X3. The variable X3 is a dummy variable where 1 = male and 2 = female: X1 X2 X3 Y 0 40 1 30 0 50 0 10 2 20 0 40 2 50 1 50 4 90 0 60 4 60 0 70 4 70 1 80 4 40 1 90 6 40 0 70 6 50 1 90 8 80 ...
Consider the following data for a dependent variable y and two independent variables, 21 and 22; for these data SST = 15,265.6, and SSR = 14,398.1. 113 V w Round your answers to three decimal places. a. Compute R. .943 b. Compute R2 c. Does the estimated regression equation explain a large amount of the variability in the data? Yes
Consider the following data for a dependent variable y and two independent variables, 21 and 22; for these data SST = 14,897.6, and SSR = 13,754.5. 109 113 Round your answers to three decimal places. a. Compute RⓇ b. Compute R2 c. Does the estimated regression equation explain a large amount of the variability in the data? - Select your answer -
Consider the following data for a dependent variable y and two independent variables, 21 and 22; for these data SST = 15,196.1, and SSR = 14,103.2. Round your answers to three decimal places. a. Compute R b. Compute R c. Does the estimated regression equation explain a large amount of the variability in the data? - Select your answer