Question

we have a bivariate data set and compute the following: r=.7, sy=9, sx=5, x-bar=13.5, y=51.6. We...

we have a bivariate data set and compute the following: r=.7, sy=9, sx=5, x-bar=13.5, y=51.6. We want to know the equation of the least-squares regression line, but we don't have a calculator. Determine the equation of the least-squares regression line from the given data.

a. y=46.34+.39x

b. y=-51.52+1.26x

c. y=34.59+1.26x

d. y=-6.624+.39x

e. you can't compute the regression line without knowing the original data.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Solution: Obtain the slope by using the formula is given below S. 5) 1.26 Obtain the intercept by using the formula is given

Add a comment
Know the answer?
Add Answer to:
we have a bivariate data set and compute the following: r=.7, sy=9, sx=5, x-bar=13.5, y=51.6. We...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Given that x = 3.5000, sx = 2.5884, y = 4.1000, sy = 1.9657, and r...

    Given that x = 3.5000, sx = 2.5884, y = 4.1000, sy = 1.9657, and r = -0.9552, determine the least-squares regression line. y = ____ x + (_____) A data set is given below. (a) Draw a scatter diagram. Comment on the type of relation that appears to exist be (b) Given that x = 3.5000, Sy = 2.5884, y = 4.1000, sy = 1.9657, and r = -0.9552, det (c) Graph the least squares regression line on the...

  • Some X, Y data are positively correlated with r = 0.5. Also:   x̄ = 4 Sx...

    Some X, Y data are positively correlated with r = 0.5. Also:   x̄ = 4 Sx = 2 ȳ = 6 Sy = 3 a. Find the equation for the regression line b. Predict Y for X = 8 c. Find the coefficient of determination and interpret its meaning.

  • 7) Compute the least-squares regression equation for the given data set. Use a TI- 84 calculator....

    7) Compute the least-squares regression equation for the given data set. Use a TI- 84 calculator. Round the slope and y -intercept to at least four decimal places. x 44 38 16 20 25 38 19 y 73 68 24 30 43 66 33 Send data to Excel Regression line equation: = y 8) Price of eggs and milk: The following table presents the average price in dollars for a dozen eggs and a gallon of milk for each month...

  • Bivariate data obtained for the paired variables x and y are shown below, in the table...

    Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in tho scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y25.35+1.10x In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values y predicted from the regression equation Sample data Calculations 215.4 210.7 237.7 251.7...

  • Bivariate data obtained for the paired variables x and y are shown below, in the table...

    Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in the scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y = -0.17+ 1.17x. In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values y predicted from the regression equation. Sample data Calculations 69...

  • Bivariate data obtained for the paired variables x and y are shown below, in the table...

    Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in the scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is ý = 0.94 +0.893. In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values ♡ predicted from the regression equation. Sample data Calculations y...

  • Bivariate data obtained for the paired variables x and y are shown below, in the table...

    Bivariate data obtained for the paired variables x and y are shown below, in the table labelled "Sample data." These data are plotted in the scatter plot in Figure 1, which also displays the least-squares regression line for the data. The equation for this line is y-23733-0.81 In the "Calculations" table are calculations involving the observed y values, the mean y of these values, and the values y predicted from the regression equation Sample data Calculations 107.7 155.1 117.3 135.2...

  • 6) Compute the least-squares regression line for predicting y from x given the following summary statistics....

    6) Compute the least-squares regression line for predicting y from x given the following summary statistics. Round the slope and y -intercept to at least four decimal places. = x 8.8 = s x 1.2 = y 30.4 = s y 16 = r 0.60 Send data to Excel Regression line equation: = y 7)Compute the least-squares regression equation for the given data set. Use a TI- 84 calculator. Round the slope and y -intercept to at least four decimal...

  • Compute the least-squares regression equation for the given data set. Round the slope and y-intercept to...

    Compute the least-squares regression equation for the given data set. Round the slope and y-intercept to at least four decimal places. х 3 7 5 4 y اقتها 1 6 4 5 Send data alle Regression line equation: y

  • Compute the least-squares regression equation for the given data set. Use a TI-84 calculator. Round the...

    Compute the least-squares regression equation for the given data set. Use a TI-84 calculator. Round the slope and y-intercept to at least four decimal places. x 5 7 6 2 1 y 4 3 2 1 Send data Regression line equation: y = Submit Assignment 2019 McGraw- Hill Education. All Rights Reserved. Terms of Use | Privacy ERTI YU

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT