Question

The equation for a straight line between two variables, xx and yy, is y=mx+by=mx+b. In this...

The equation for a straight line between two variables, xx and yy, is y=mx+by=mx+b. In this equation, mm is the slope of the line and bb is the yy-intercept (the point at which the straight line crosses the yy-axis). When m<0m<0, the line has a negative slope. When m>0m>0, the line has a positive slope.

The correlation coefficient, rr, can be used to calculate the values of mm and bb in a linear regression.

First, use the values you have already calculated to calculate mm in this equation: m=rsysxm=rsysx. Enter your answer to the nearest whole number. (sysy and sxsx are the standard deviations of variables xx and yy.)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution:

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The strength of the relationship between two quantitative variables can be measured by the y-intercept of...
The strength of the relationship between two quantitative variables can be measured by the y-intercept of the simple linear regression equation. the slope of a simple linear regression equation. both the coefficient of correlation and the coefficient of determination. the coefficient of determination. the coefficient of correlation.
Consider the line with non-zero slope m and y-intercept b, that is the line described by...
Consider the line with non-zero slope m and y-intercept b, that is the line described by the equation y = mx + b where m is not equal to 0. Use dot products of vectors to show that any line perpendicular to this one must have a slope of -1/m. Also show that in the case where m=0, any perpendicular line must be vertical (and hence have undefined slope).
Find the equation of the tangent line y=mx+b y=e2x+2x at x=0 m=??? n=???
Find the equation of the tangent line y=mx+b y=e2x+2x at x=0 m=??? n=???
Number of customers in millions Energy Consumption in GWh 1.363138 22416 1.389033 23138 1.417664 24042 1.448548...
Number of customers in millions Energy Consumption in GWh 1.363138 22416 1.389033 23138 1.417664 24042 1.448548 24795 1.480294 25845 Using the linear regression equation make a prediction what the Gigawatt hours will be equal to when the number of customers reach ten (10) million. Linear regression equation: Where, x and y are the variables b = The slope of the regression line a = The intercept point of the regression line and the y axis. N = Number of values...
1) In the regression equation, y = 2.164 + 1.3657x, n = 6, the mean of...
1) In the regression equation, y = 2.164 + 1.3657x, n = 6, the mean of x is 8.667, SSxx = 89.333 and Se = 3.44. A 95% confidence interval for the average of y when x = 8 is _________. 2)If the correlation coefficient between variables X and Y is roughly zero, then ______. 3) Determine the Pearson product-moment correlation coefficient for the following data. x 1 11 9 6 5 3 2 y 10 4 4 5 7...
The regression line can never be used for prediction. True False The slope is the amount...
The regression line can never be used for prediction. True False The slope is the amount Y changes for every increase in X. True False "When you calculate a regression equation, you want the line with the most error. " True False "Correlation measures the linear relationship between two variables, while a regression analysis precisely defines this line. " True False The predicted value based on a regression equation is a perfect prediction. True False What represents the intercept (the...
Linear Regression and Correlation. x y 3 -3.26 4 2.72 5 1.2 6 1.88 7 0.16...
Linear Regression and Correlation. x y 3 -3.26 4 2.72 5 1.2 6 1.88 7 0.16 8 -5.66 9 3.02 10 -6.7 11 -3.92 12 -5.34 Compute the equation of the linear regression line in the form y = mx + b, where m is the slope and b is the intercept. Use at least 3 decimal places. y = x +   Compute the correlation coeficient for this data set. Use at least 3 decimal places. r=   Compute the P-value...
Linear Regression and Correlation. x y 3 -10.52 4 1.94 5 -2.7 6 -3.14 7 -9.18...
Linear Regression and Correlation. x y 3 -10.52 4 1.94 5 -2.7 6 -3.14 7 -9.18 8 -4.82 9 -12.26 10 -11.1 11 -6.44 Compute the equation of the linear regression line in the form y = mx + b, where m is the slope and b is the intercept. Use at least 3 decimal places. (Round if necessary) y = x + Compute the correlation coeficient for this data set. Use at least 3 decimal places. (Round if necessary)...
Given are five observations for two variables, x and y. xi 1 2 3 4 5...
Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 4 6 6 11 15 Which of the following scatter diagrams accurately represents the data? 1. 2. 3. What does the scatter diagram indicate about the relationship between the two variables? Develop the estimated regression equation by computing the the slope and the y intercept of the estimated regression line (to 1 decimal). ŷ = + x Use the estimated regression equation to...
Find the equation of the regression line for the given data. Then construct a scatter plot...
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line.​ (The pair of variables have a significant​ correlation.) Then use the regression equation to predict the value of y for each of the given​ x-values, if meaningful. The table below shows the heights​ (in feet) and the number of stories of six notable buildings in a city. Height comma xHeight, x 774774 625625 521521 508508 497497...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT