Policy A n₁ = 10 x = R12 663 S1 = R664 Policy B n2 = 15 X = R9926 S2 = R6044 .1) Test the claim that the mean cost of policy A is equal to the mean cost of policy B. assume a 0.05 significance level. Assume s₁²= s₂², but in practice this is tested with an F-test.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Question
Student
Mid-
Term
98
66
100
96
88
45
76
60
74
82
Final
90
74
98
88
80
62
78
74
86
80
1
2
3
4
5
6
7
8
9
10
Table 3: Statistics student scores
Transcribed Image Text:Student Mid- Term 98 66 100 96 88 45 76 60 74 82 Final 90 74 98 88 80 62 78 74 86 80 1 2 3 4 5 6 7 8 9 10 Table 3: Statistics student scores
The following data were obtained:
Policy A
n₁ = 10
x = R12 663
X = R9926
S1 = R664 S2 R6044
Policy B
n₂ = 15
.1) Test the claim that the mean cost of policy A is equal to the mean cost of policy
B. assume a 0.05 significance level. Assume s₁²= s₂², but in practice this is tested with
an F-test.
.2) Predict the final exam scores from scores made by students in a statistics class in
the mid-term and final examination given in the table3 below.
.2.1) Develop a regression equation which may be used to predict final examination
scores from the mid- term score
Transcribed Image Text:The following data were obtained: Policy A n₁ = 10 x = R12 663 X = R9926 S1 = R664 S2 R6044 Policy B n₂ = 15 .1) Test the claim that the mean cost of policy A is equal to the mean cost of policy B. assume a 0.05 significance level. Assume s₁²= s₂², but in practice this is tested with an F-test. .2) Predict the final exam scores from scores made by students in a statistics class in the mid-term and final examination given in the table3 below. .2.1) Develop a regression equation which may be used to predict final examination scores from the mid- term score
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