4. 5. 4 7 9 5 6 7 6 3 5 7 6 8 8 4 7 9 3 6 10 1 6 11 7 12 3 7 8 a. b. C. Compute the Pearson correlation. Compute the t-test. Report the degrees of freedom and the value of the t. Using a two-tailed test with a = .05, what is your decision? (reject the null hypothesis or fail to reject the null hypothesis) A set of n 12 pairs of scores (X and Y values) produces a regression equation of Yhat = 4x + 2. Find the predicted Y value (i.e., Yhat) for each of the following X scores: 1, 2, 3, and 4. For the following scores: Participant X Y 1 3 5 2 4 3 3 6 5 4 9 12 5 9 11 6 4 9 7 3 4 8 4 12 9 5 7 a. Find the regression equation for predicting Y from X. b. Use the regression equation to calculate the predicted Y value (Yhat) for each X. 1. Assignment for Chapter 14 (Correlation and Regression) For the following scores: a. Y 4 6 5 3 3 2 5 7 1 1 4 5 5 7 2 3 Compute the Pearson correlation. Create a scatterplot. b. 2. For the following set of scores: Y 4 8 8 6 4 6 3 2 7 8 9 7 3. a. b. Compute the Pearson correlation. Add 3 points to each X value and compute the correlation for the modified scores. How does adding a constant to every score affect the value of the correlation? Multiply each of the original X values by 3 and compute the correlation for the modified scores. How does multiplying each score by a constant affect the value of the correlation? In recent years, researchers have differentiated between two types of Internet harassment: cyberbullying and Internet trolling. A study was conducted of cyber harassment where participants answered survey questions about cyberbullying and Internet trolling. Below are the data: Cyberbullying Participant Score Internet Trolling Score 1 3 2 2 2 4 3 5 8
4. 5. 4 7 9 5 6 7 6 3 5 7 6 8 8 4 7 9 3 6 10 1 6 11 7 12 3 7 8 a. b. C. Compute the Pearson correlation. Compute the t-test. Report the degrees of freedom and the value of the t. Using a two-tailed test with a = .05, what is your decision? (reject the null hypothesis or fail to reject the null hypothesis) A set of n 12 pairs of scores (X and Y values) produces a regression equation of Yhat = 4x + 2. Find the predicted Y value (i.e., Yhat) for each of the following X scores: 1, 2, 3, and 4. For the following scores: Participant X Y 1 3 5 2 4 3 3 6 5 4 9 12 5 9 11 6 4 9 7 3 4 8 4 12 9 5 7 a. Find the regression equation for predicting Y from X. b. Use the regression equation to calculate the predicted Y value (Yhat) for each X. 1. Assignment for Chapter 14 (Correlation and Regression) For the following scores: a. Y 4 6 5 3 3 2 5 7 1 1 4 5 5 7 2 3 Compute the Pearson correlation. Create a scatterplot. b. 2. For the following set of scores: Y 4 8 8 6 4 6 3 2 7 8 9 7 3. a. b. Compute the Pearson correlation. Add 3 points to each X value and compute the correlation for the modified scores. How does adding a constant to every score affect the value of the correlation? Multiply each of the original X values by 3 and compute the correlation for the modified scores. How does multiplying each score by a constant affect the value of the correlation? In recent years, researchers have differentiated between two types of Internet harassment: cyberbullying and Internet trolling. A study was conducted of cyber harassment where participants answered survey questions about cyberbullying and Internet trolling. Below are the data: Cyberbullying Participant Score Internet Trolling Score 1 3 2 2 2 4 3 5 8
Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
Section: Chapter Questions
Problem 1TY
Related questions
Question
Uncertain how to solve
Transcribed Image Text:4.
5.
4
7
9
5
6
7
6
3
5
7
6
8
8
4
7
9
3
6
10
1
6
11
7
12
3
7
8
a.
b.
C.
Compute the Pearson correlation.
Compute the t-test. Report the degrees of freedom and the value of the t.
Using a two-tailed test with a = .05, what is your decision? (reject the null hypothesis or
fail to reject the null hypothesis)
A set of n 12 pairs of scores (X and Y values) produces a regression equation of Yhat = 4x + 2.
Find the predicted Y value (i.e., Yhat) for each of the following X scores: 1, 2, 3, and 4.
For the following scores:
Participant
X
Y
1
3
5
2
4
3
3
6
5
4
9
12
5
9
11
6
4
9
7
3
4
8
4
12
9
5
7
a.
Find the regression equation for predicting Y from X.
b.
Use the regression equation to calculate the predicted Y value (Yhat) for each X.
Transcribed Image Text:1.
Assignment for Chapter 14 (Correlation and Regression)
For the following scores:
a.
Y
4
6
5
3
3
2
5
7
1
1
4
5
5
7
2
3
Compute the Pearson correlation.
Create a scatterplot.
b.
2.
For the following set of scores:
Y
4
8
8
6
4
6
3
2
7
8
9
7
3.
a.
b.
Compute the Pearson correlation.
Add 3 points to each X value and compute the correlation for the modified scores. How
does adding a constant to every score affect the value of the correlation?
Multiply each of the original X values by 3 and compute the correlation for the modified
scores. How does multiplying each score by a constant affect the value of the
correlation?
In recent years, researchers have differentiated between two types of Internet harassment:
cyberbullying and Internet trolling. A study was conducted of cyber harassment where
participants answered survey questions about cyberbullying and Internet trolling. Below are the
data:
Cyberbullying
Participant
Score
Internet
Trolling Score
1
3
2
2
2
4
3
5
8
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