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Introduction to Using Statistical Analyses
Measures of Central Tendency
(done . . .for now) Measures of Variability Writing Using the Standard Normal Curve
Introduction to Using Statistical Analyses
Measures of Central Tendency
(done . . .for now)
Measures of Variability Writing Using the Standard Normal Curve
Introduction to Using Statistical Analyses
Measures of Central Tendency
(done . . .for now) Measures of Variability
Writing Using the Standard Normal Curve
Introduction to Using Statistical Analyses
Measures of Central Tendency(done . . .for now)
Measures of Variability WritingUsing the Standard Normal
Curve
Correlation Example Using z scores
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 1.27
- .63
0
.63
1.27
- 1.27
- .63
1.27
0
.63
Zx Zy
Correlation Example Using z scores
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 1.27
- .63
0
.63
1.27
- 1.27
- .63
1.27
0
.63
Zx Zy
1.61
.4
0
0
.8
Zx * Zy
Correlation Example Using z scores
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 1.27
- .63
0
.63
1.27
- 1.27
- .63
1.27
0
.63
Zx Zy
1.61
.4
0
0
.8
Zx * Zy
SUM = _ 2.81 __
n-1 = 4
Correlation Example Using z scores
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 1.27
- .63
0
.63
1.27
- 1.27
- .63
1.27
0
.63
Zx Zy
1.61
.4
0
0
.8
Zx * Zy
SUM = _ 2.81 __
n-1 = 4=.70
Correlation Example
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 2
- 1
0
1
2
- 2
- 1
2
0
1
X X Y Y
Correlation Example
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 2
- 1
0
1
2
- 2
- 1
2
0
1
X X Y Y X X Y Y* 4
1
0
0
2
Correlation Example
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 2
- 1
0
1
2
- 2
- 1
2
0
1
X X Y Y X X Y Y* 4
1
0
0
2 YYXX = 7
Correlation Example
1
2
3
4
5
3
4
7
5
6
Speaking Skill
X
Writing Skill
Y
- 2
- 1
0
1
2
- 2
- 1
2
0
1
X X Y Y X X Y Y* 4
1
0
0
2 YYXX = 7
n-1 = 4