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
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
Related questions
Question
JUST QUESTION 16 PLEASE
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
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