what is the trace of correlation matrix ? explian in detials
please?
what is the trace of correlation matrix ? explian in detials
please?
Solutions
Expert Solution
A connection grid is a table indicating relationship
coefficients between factors.
Every cell in the table demonstrates the relationship between's
two factors.
A relationship network is utilized as an approach to outline
information, as a contribution to a further developed examination,
and as an analytic for cutting edge investigations.
There are three expansive explanations behind registering a
connection framework.
To condense a lot of information where the objective is to see
designs.
In our model over, the perceptible example is that every one of
the factors profoundly connect with one another.
To enter into different investigations. For instance,
individuals ordinarily use connection frameworks as contributions
for exploratory factor investigation, corroborative factor
examination, basic condition models, and direct relapse while
barring missing qualities pairwise.
As an indicative while checking different investigations. For
instance, with direct relapse a high measure of connections
proposes that the straight relapse's evaluations will be
problematic.
Please evaluate the correlation matrix below, assuming stock
price is the response variable in a series of multiple regression
equations you plan to run. If you are using this as a diagnostic
tool, what are you looking for? If this was your data, how would
you proceed?
Stock Price
Competitiveness
Innovativeness
Firm Size
Firm Age
Stock Price
1.0
Competitiveness
.73
1.0
Innovativeness
.49
.81
1.0
Firm Size
.17
.12
.03
1.0
Firm Age
.26
-.31
-.49
.62
1.0
Question 7. The results of the correlation
analysis in the Correlation Matrix these variables
are depicted below. Use information in the table to discuss the
strength and nature of relationship between the four variables.
Training
Performance
Years of Service
Annual Salary
Training
1
Performance
0.016
1
Years of Service
0.377
-0.268
1
Annual Salary
0.597
0.709
0.286
1
Question 9. Results of the three goodness of
test measures is given in the table below:
Goodness of Fit Tests
R Square...
Let A be a 2×2 symmetric matrix. Show that if det A > 0 and
trace(A) > 0 then A is positive definite. (trace of a matrix is
sum of all diagonal entires.)
If a Correlation matrix shows that the association between the
IV - the percentage of residents of a state (in the US) who have
graduated from high school and the DV - the percentage of murders
committed with firearms in a state is -.271, with
an associated sig. of .001, explain how you
understand the relationship between the Independent variable and
the Dependent variable.
v(a) Using examples, outline the differences between correlation
and causation. (b) The Excel correlation matrix below shows
correlation coefficients between cheapest economy and business
class fares, flight times and flight distances for non-stop
round-trip flights in December 2019 to 12 medium- and long-haul
destinations from Manchester Airport (source: flights.google.com,
accessed 4th November 2019). Economy Fare Business Fare Time
Distance Economy Fare 1.000 Business Fare 0.854 1.000 Time 0.663
0.494 1.000 Distance 0.520 0.317 0.971 1.000 (i) Explain how this
correlation...
Examine the Correlation Matrix for the variables in the model
presented in the table below.
Correlations
Life Purpose and Satisfaction
gender
subject's age
depressed state of mind
exercise
Pearson Correlation
Life Purpose and Satisfaction
1.000
.149
.051
-.661
.307
gender
.149
1.000
-.020
-.074
.033
subject's age
.051
-.020
1.000
.016
-.097
depressed state of mind
-.661
-.074
.016
1.000
-.211
exercise
.307
.033
-.097
-.211
1.000
Sig. (1-tailed)
Life Purpose and Satisfaction
.
.001
.147
.000
.000
gender
.001...
PCA uses the fact that the correlation matrix is real and
symmetric. Are the corresponding eigen values real and distinct?
How do you prove that assertion?