16. If the Pearson Correlation Coefficient that you calculated in #9 remains the same, but you had 4 more participants (n = 11), what would your decision be? Reject or Fail to Reject %3D

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

JUST QUESTION 16 PLEASE 

Here are some formulas to help:
SP
SP =E XY –
- ΣΧΣΥ
(EY)?
SS, = EY?
r =
SS = Ex² Ex}
SSx
xSSy
n
n
Use this set of data to answer questions #1 - #17. You are conducting a correlational study.
Participant
Y
XY
X2
Y2
A
2
4
В
1
3
C
6.
E
4
2
F
4
G
2
2
1. What is your null hypothesis? (in statistical notation)
2. What is your null hypothesis? (in words)
3. What is your alternative hypothesis? (in statistical notation)
4. What is your alternative hypothesis? (in words)
5. How many participants are in your study?
6. What is the value of Sum of Products (SP)? (SHOW YOUR WORK)
7. What is the value of SSx? (SHOW YOUR WORK)
8. What is the value of SSy? (SHOW YOUR WORK)
9. Calculate the Pearson Correlation Coefficient (r): (SHOW YOUR WORK)
10. Sketch a scatterplot for these data:
11. How many degrees of freedom (df) are in this study?
12. If you are doing a two-tailed test and alpha = .05, find the critical value of r from the table:
%3D
13. What is your decision regarding the null hypothesis? Reject or Fail to Reject
14. How did you make the determination in Question #13?
15. Is there a significant correlational relationship between X and Y?
Yes or No
16. If the Pearson Correlation Coefficient that you calculated in #9 remains the
had 4 more participants (n = 11), what would your decision be? Reject or Fail to Reject
same,
but
you
%3D
Transcribed Image Text:Here are some formulas to help: SP SP =E XY – - ΣΧΣΥ (EY)? SS, = EY? r = SS = Ex² Ex} SSx xSSy n n Use this set of data to answer questions #1 - #17. You are conducting a correlational study. Participant Y XY X2 Y2 A 2 4 В 1 3 C 6. E 4 2 F 4 G 2 2 1. What is your null hypothesis? (in statistical notation) 2. What is your null hypothesis? (in words) 3. What is your alternative hypothesis? (in statistical notation) 4. What is your alternative hypothesis? (in words) 5. How many participants are in your study? 6. What is the value of Sum of Products (SP)? (SHOW YOUR WORK) 7. What is the value of SSx? (SHOW YOUR WORK) 8. What is the value of SSy? (SHOW YOUR WORK) 9. Calculate the Pearson Correlation Coefficient (r): (SHOW YOUR WORK) 10. Sketch a scatterplot for these data: 11. How many degrees of freedom (df) are in this study? 12. If you are doing a two-tailed test and alpha = .05, find the critical value of r from the table: %3D 13. What is your decision regarding the null hypothesis? Reject or Fail to Reject 14. How did you make the determination in Question #13? 15. Is there a significant correlational relationship between X and Y? Yes or No 16. If the Pearson Correlation Coefficient that you calculated in #9 remains the had 4 more participants (n = 11), what would your decision be? Reject or Fail to Reject same, but you %3D
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman