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Unformatted text preview: Question 1 C
Grade B
A Amount Studied
L
M
H
2 67%
1 25%
0 100%
1 33%
2 50%
1 33%
0 0%
1 25%
2 67%
3 100% 4 100% 3 100% 3 30%
4 40%
3 30%
10 100% Question 2 C
Grade B
A L
2
1
0
3 Amount Studied
M
H
1
0
2
1
1
2
4
3 3
4
3 Gamma D
0 x (2+1+1+0)
1 x (1 + 0)
1 x (1 + 0)
2 x (0) total = 22
Question 3 C
2 x (2+1+1+2)
1 x (2+1)
1 x (2+1)
2 x (2) total = 2 GIVEN ==== FREQUENCY
Frequency of Time Spent on Facebook
Low
Freq of
dates in
past year Low
Medium
High
TOTALS Med High
3
5
1
4
2
4
6
13 TOTALS 4
3
0
6 12
7
6
25 172
78
102
130 59.9
34.1
10.1
17.9 Question 4 & Question 5
For 4, 5, 6
Hours spent listening to music
x
15
7.3
2
5.7
4
3.7
12
4.3 53.29
32.49
13.69
18.49 IQ
y 3588.01
1162.81
102.01
320.41 n=10 12
6
8
3
4
11
77
x = 7.7
̅ Question 6
b= 4.3
1.7
0.3
4.7
3.7
3.3 186.1 or b = b = 5.72
a = a = 112.1 5.72 (7.7)
a = 68.056
y = a + bx
y = 68.056 + 5.72x
Question 7
Table 1 18.49
2.89
0.09
22.09
13.69
10.89 124
92
114
84
98
127
1121 y = 112.1
̅ 11.9
20.1
1.9
28.1
14.1
14.9 141.61
404.01
3.61
789.61
198.81
222.01
6932.9 Table 2 Question 8 x (2+1+1+0) Gamma= (222)/22+2
Gamma = .83333
TO GET PERCENTS
Frequency of Time Spent on Facebook
Low
Freq of
dates in
past year Low
Medium
High
TOTALS Medium
High
3/6
5/13
1/6
4/13
2/6
4/13
6/6
13/13 4/6
2/6
0/6
6/6 TOTALS 12/25
7/25
6/25
25/25 Freq of
dates in
past year Q4
Covariance =
437.27
194.37
37.37
76.97 Covariance = 1065.3
Interpretation:
There is a positive relationship between listening to dance music and IQ meaning the more you listen to dance music, the higher your IQ. TOTALS 51.17
34.17
0.57
132.07
52.17
49.17 There is a positive relationship between listening to dance music and IQ meaning the more you listen to dance music, the higher your IQ.
Q5
Pearson’s R =
R = 1065.3 1065.3 R= R= .938
There is a strong positive Interpretation:
relationship between the amount of dance music you listen to and your IQ. Without knowing anything else, you can get this information from the table.
SS = Squared Sum
0.5 So in the row under that where it says model is the ESS the explained sum of squares. So in the row under that where it says model is the ESS the explained sum of squares.
In the row under total its the total error in the model… the SSE. RMS =
RMS = RMS = 195.99 0.26 RMS = RMS = 2528.345 0.65
RMS = RMS = 3.4388896
Expected weight!
y = 39.44 0.006x
30 = 39.44 0.006x 9.44 = .006x
1573.333 = x PERCENTS FOR COMPARISSON
Frequency of Time Spent on
Facebook
Low
Medium
High
Low
50%
38%
67%
Medium
17%
31%
33%
High
33%
31%
0%
TOTALS
100%
100%
100% TOTALS 48%
28%
24%
100% where it says model d sum of squares. s the total error in ...
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This note was uploaded on 09/14/2011 for the course STATISTICS 0825 taught by Professor Dr.arceneaux during the Fall '09 term at Temple.
 Fall '09
 Dr.Arceneaux

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