1. The following measurements have been obtained in a study: No. y x1 X2 No. y x1 7 8 1.14 1 2 3 4 5 6 9 10 11 12 13 1.45 1.93 0.81 0.61 1.55 0.95 0.45 0.74 0.98 1.41 0.81 0.89 0.58 0.86 0.29 0.20 0.56 0.28 0.08 0.41 0.22 0.35 0.59 0.22 0.26 0.71 0.13 0.79 0.20 0.56 0.92 0.01 0.60 0.70 0.73 0.13 0.96 0.27 23 24 25 14 15 16 17 18 19 20 21 22 0.68 1.39 1.53 0.91 1.49 1.38 1.73 1.11 1.68 0.66 0.69 1.98 0.12 0.65 0.70 0.30 0.70 0.39 0.72 0.45 0.81 0.04 0.20 0.95 0.21 0.88 0.30 0.15 0.09 0.17 0.25 0.30 0.32 0.82 0.98 0.00 It is expected that the response variable y can be described by the independent variables x₁ and x₂. This imply that the parameters of the following model should be estimated and tested. y₁ = Bo + B₁x1 + ₂x₂ +Ei. Ei ~ N(0,0²). 1. Calculate the parameter estimates (bo, b₁,b₂, and o²), 2. Find the usual 95% confidence intervals for Bo. P₁, and $₂.

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1. The following measurements have been obtained in a study:
No.
y
x1
No.
y
x1
x2
4
8
5 6
0.95
1.55
0.45
1.14
0.74
1 2 3
9 10 11 12 13
1.45 1.93 0.81 0.61
0.98 1.41 0.81 0.89
0.58 0.86 0.29 0.20 0.56 0.28 0.08 0.41 0.22 0.35 0.59 0.22 0.26
0.71 0.13 0.79 0.20 0.56 0.92 0.01 0.60 0.70 0.73 0.13 0.96 0.27
7
23 24 25
0.66 0.69 1.98
14 15 16 17 18 19 20 21 22
0.68 1.39 1.53 0.91 1.49 1.38 1.73 1.11 1.68
0.12 0.65 0.70 0.30 0.70 0.39 0.72 0.45 0.81 0.04 0.20 0.95
0.21 0.88 0.30 0.15 0.09 0.17 0.25 0.30 0.32 0.82 0.98 0.00
It is expected that the response variable y can be described by the independent variables x₁ and x₂.
This imply that the parameters of the following model should be estimated and tested.
yi= Bo + B₁x1 + B₂x2+E₁, E₁-N(0,0²).
1. Calculate the parameter estimates (bo, b₁,b₂, and o²),
2. Find the usual 95% confidence intervals for Bo. P₁, and $₂.
Transcribed Image Text:1. The following measurements have been obtained in a study: No. y x1 No. y x1 x2 4 8 5 6 0.95 1.55 0.45 1.14 0.74 1 2 3 9 10 11 12 13 1.45 1.93 0.81 0.61 0.98 1.41 0.81 0.89 0.58 0.86 0.29 0.20 0.56 0.28 0.08 0.41 0.22 0.35 0.59 0.22 0.26 0.71 0.13 0.79 0.20 0.56 0.92 0.01 0.60 0.70 0.73 0.13 0.96 0.27 7 23 24 25 0.66 0.69 1.98 14 15 16 17 18 19 20 21 22 0.68 1.39 1.53 0.91 1.49 1.38 1.73 1.11 1.68 0.12 0.65 0.70 0.30 0.70 0.39 0.72 0.45 0.81 0.04 0.20 0.95 0.21 0.88 0.30 0.15 0.09 0.17 0.25 0.30 0.32 0.82 0.98 0.00 It is expected that the response variable y can be described by the independent variables x₁ and x₂. This imply that the parameters of the following model should be estimated and tested. yi= Bo + B₁x1 + B₂x2+E₁, E₁-N(0,0²). 1. Calculate the parameter estimates (bo, b₁,b₂, and o²), 2. Find the usual 95% confidence intervals for Bo. P₁, and $₂.
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