X 15 Y = 14 SS, = 232 S, = 3.81 SS, 194 %3D Sx = 3.48 SP = 14
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Correlation Regression Practice II
1. Researchers want to know if there is a relationship between social skills and intelligence. Use alpha = .05.
Social Skills
Intelligence
16
20
X- 15
Y= 14
SS, = 232
S, = 3.81
16
10
SS, = 194
10
9
Sy = 3.48
14
10
SP = 14
11
15
19
13
12
11
21
12
23
18
13
16
16
20
14
20
17
11
14
13
12
17
13
12
14
11
A. Graph the data.
B. State the hypotheses.
C. Make a decision about the null.
Calculate Pearson's r
1. Decision about null hypothesis?
a.
b. Calculate effect size
Interpret effect size.
D. State your conclusion.
E. Relate your conclusion to the research
F. Calculate the regression formula.
Plot the regression line.
b. If someone scored 15 on social skills, what is their predicted intelligence score?
a.
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