Question

Suppose the correlation between X and Y is 0.75. You know for a new observation that...

Suppose the correlation between X and Y is 0.75. You know for a new observation that the value for X is below the mean for X. What is your best guess for the value of Y?

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

Homework Answers

Answer #1

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
Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals −0.75,...
Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals −0.75, this means that: a. there is very weak correlation. b. the slope b1 is = −0.75. c. the value of X is always greater than the value of Y. d. None of these choices are true. Which of the following is a property of the slope, b1? a. The slope equals one if X and Y have the same variance. b. The slope has...
1. Given that the correlation between X and Y is -0.48, the mean and standard deviation...
1. Given that the correlation between X and Y is -0.48, the mean and standard deviation of X are 3.4 and 8.3, the mean and the standard deviation of Y is 6.5 and 7.2 respectively. Find the slope for the line of best fit. 2. Given that the correlation between X and Y is -0.48, the mean and standard deviation of X are 3.4 and 8.3, the mean and the standard deviation of Y is 6.5 and 7.2 respectively. Find...
Suppose the correlation between study time x and test score y is given by r =...
Suppose the correlation between study time x and test score y is given by r = .939. What does this tell us about the correlation between x and y? 0 We have 12 = .8817. What does this tell us about the connection between x and y (regression of y on x)?
A negative correlation between variables X and Y means that ____. A. the correlation between variables...
A negative correlation between variables X and Y means that ____. A. the correlation between variables X and Y is very weak B. scores on variable X has little predicting power on the corresponding scores on variable Y C. higher scores on variable X correspond to lower scores on variable Y and vice versa D. Higher scores on variable X correspond to higher scores on variable Y while lower scores on variable X correspond to lower scores on variable Y...
For the relationship between X and Y you have obtained a correlation coefficent of .67. When...
For the relationship between X and Y you have obtained a correlation coefficent of .67. When you computed the partial correlation coefficient between X and Y controlling for the effects of Z, you obtained a partial r of .55. What can you say about the relationship of X and Y when you have this information? a) the relationship between X and Z is stronger than the relationship between X and Y b) the relationship between X and Y is less...
The correlation between x, ( the diameter of the tree), and Y (the tree’s height) is...
The correlation between x, ( the diameter of the tree), and Y (the tree’s height) is 0.875064.   A coefficient of correlation of 0.875064 indicates a strong correlation between the independent variable and the dependent variable.   In general, if Y tends to increase along with X, there's a positive relationship. QUESTION: What does this mean in terms of the problem?    Is it a strong correlation? is it statistically significant?
Suppose that you run a correlation and find the correlation coefficient is -0.271 and the regression...
Suppose that you run a correlation and find the correlation coefficient is -0.271 and the regression equation is ˆy=−1.1x+27.56. The mean of your x-values was 6.6. The mean of your y-values was 19.8. If the critical value is .505, use the appropriate method to predict the y value when xx is 7.8 (I already tried 1.1(7.8)+27.56 and got 18.98 and it was wrong)
You are only given the correlation between Y and X. Based on that alone, you would...
You are only given the correlation between Y and X. Based on that alone, you would be able to determine the R-squared of a regression of Y on X. True/False
If the relationship between x and y is given by y=0.3x+0.8, what is the correlation coefficient...
If the relationship between x and y is given by y=0.3x+0.8, what is the correlation coefficient between x and y?
Suppose you are given the following simple dataset, regress Y on X: y=β0+β1x+u X Y 1...
Suppose you are given the following simple dataset, regress Y on X: y=β0+β1x+u X Y 1 2 2 4 6 6 Calculate β0 andβ1Show algebraic steps. Interpret β0 and β1 Calculate the predicted(fitted)value of each observation Calculate the residual ofeach observation When x=3, what is the predicted value of Y? Calculate SSR, SST, and then SSE. How much of the variation in Y is explained by X? 8)Calculate the variance estimator
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT