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Determine and record how much of the math grade can be explained by the PE grade? How much of the Writing grade can be explained by the Reading grade?
Correlation - Variance-Coefficient of Determination:
Standard Test Scores
Name
Gender
Absences
PE
Math
Writing
Reading
Alex
Boy
5
49
85
86
80
Anthony
18
51
39
71
75
Douglas
1
82
74
78
79
Jorge
4
56
66
68
60
Joshua
83
77
Luke
0
94
89
84
Robert
17
36
50
Rupert
24
55
52
Seth
61
92
Wayne
65
96
91
Blair
Girl
3
59
90
Brooke
2
35
43
46
Carmen
Charlita
16
23
Kim
95
Li
73
98
93
Rachel
87
Sara
33
Sheetal
100
97
Tawayna
14
31
63
Assume a population standard deviation of 450-kilowatt hours. Determine the standard error of the mean.
Conduct a statistical test to determine if the sample is representative of the population.
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The point estimate for the difference between the proportions is:
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At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
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