Determine the values of the three principal components for the following observation.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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Question

Determine the values of the three principal components for the following observation.

Age, Experience, and Income ($1000) of a bank customer were used in a principal component analysis. The mean of the original variables and the
coefficients of the three principal components are given in the table below.
Variable
Mean
PC1
PC2
PC3
Age
28
0.844
0.145
-0.04
Experience
-0.122
9
0.915
0.022
Income ($1000)
190
0.05
-0.007
0.824
Determine the values of the three principal components for the following observation.
Variable
Value
Age
66
Experience
22
Income
140
Answer:
Z1 =
Round your answer to 3 decimal places.
Z2 =
Round your answer to 3 decimal places.
Z3 =
Round your answer to 3 decimal places.
Transcribed Image Text:Age, Experience, and Income ($1000) of a bank customer were used in a principal component analysis. The mean of the original variables and the coefficients of the three principal components are given in the table below. Variable Mean PC1 PC2 PC3 Age 28 0.844 0.145 -0.04 Experience -0.122 9 0.915 0.022 Income ($1000) 190 0.05 -0.007 0.824 Determine the values of the three principal components for the following observation. Variable Value Age 66 Experience 22 Income 140 Answer: Z1 = Round your answer to 3 decimal places. Z2 = Round your answer to 3 decimal places. Z3 = Round your answer to 3 decimal places.
Expert Solution
Step 1

principle components is the  new variable which is linear combination of initial variable .

In the above example initial variables are Age , Experience and Income based on that three principle components are given as follows :

 

z1=(0.844× Age )+ (-0.122× Experience ) + ( 0.05 × Income )z1=(0.844× 66 )+ (-0.122× 22 ) + ( 0.05 ×140 )z1=55.704 - 2.684 + 7z1=60.020z2=(0.145× Age )+ (0.915× Experience ) + ( -0.007 × Income )z2=(0.145× 66 )+ (0.915× 22 ) + ( -0.007 × 140 )z2=9.57 + 20.13 -0.98z2=28.720z3=(-0.04× Age )+ (0.022× Experience ) + ( 0.824 × Income )z3=(-0.04× 66 )+ (0.022× 22 ) + ( 0.824 × 140 )z3=-2.64 + 0.484 + 115.36z3=113.204

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