Question

b. Spearman’s Correlation. **Identify two
v**ariables for which you could calculate a Spearman’s
correlation coefficient. Describe the variables and their scale of
measurement. **Now, assume** you conducted a
correlation and came up with a significant positive or negative
value. Create a mock r value (for example, .3 or -.2). Report your
mock finding in APA style (note the text does not use APA style)
and interpret the statistic in terms of effect size and R2 while
also taking into account the third variable problem and well as
direction of causality. **data is not missing because this is
a mock exercise you are to make up data**

Answer #1

Two variables - Price and No. of items sold

Price - It the cost of the product and it continuous variable.It can values such as 10.25 or 8.43 so on.

No. of items sold - it is the number of items sold in the shop and it is a discrete variable and its level of measurement is ratio scale.

Correlation between the two is strongly negative. (r = - 0.95). As the price the item increases, the number of items sold decreases.

**APA style**

Based on the results of the study, price is strongly negatively
related to the number of items sold r = 0.85, p <0.05

Research area of interest: Synthetic Marijuana Lands Thousands
of Young People in the ER, Especially Young Males.
Spearman’s Correlation. Identify two variables for which you
could calculate a Spearman’s correlation coefficient. Describe the
variables and their scale of measurement. Now, assume you conducted
a correlation and came up with a significant positive or negative
value. Create a mock r value (for example, .3 or -.2). Report your
mock finding in APA style (note the text does not use APA style)...

f. In Logistic Regression identify at least 3 variables for
which you could calculate a logistic regression. Describe the
variables and their scale of measurement. Which variables would you
include as the predictor variables and which as the outcome
variable? Why? Which regression method would you use and why? What
would the output tell you about the relationship between the
variables?
This is the full question

How would you interpret a correlation coefficient of A) 0.84
between two variables? B) -0.02? C) -0.54? What is the coefficient
of determination and how do we use it?

When you are presented with a Pearson’s correlation
coefficient between two variables for which an increase in one
predicts a decrease in the other, and vice versa, the Pearson’s
number will be
zero; the Pearson number is only meaningful if the
variables move in the same direction as one another
close to -1 if the correlation is strong, negative but
near zero if the correlation is weak
close to -1 if the correlation is strong, close to +1
if the...

You wish to determine if there is a positive linear correlation
between the two variables at a significance level of α=0.01α=0.01.
You have the following bivariate data set.
x
y
54.5
82.1
45.8
20.9
46.4
22.7
44.8
-5.5
38.8
-5.4
35.4
83.5
44.3
96.3
25
-45.1
47.8
29.8
48.8
6
49.9
40.6
50.2
62.7
42.1
20.4
32.3
-40.2
45.1
30.5
49.3
3.4
29.4
27.7
44
2.3
39.2
18.2
37.5
1
44.1
27.1
50.6
-41.3
42.9
90.5
39.2
4.5
40.2
-60.7...

You wish to determine if there is a linear correlation between
the two variables at a significance level of α=0.05α=0.05. You have
the following bivariate data set.
x
y
43.3
-108.4
21.9
114.3
1.5
113.2
62.4
143.4
-2.2
48.1
20.3
-32.4
36.5
62.5
20.5
93.2
-10
-71.7
31.9
-323.3
30.9
132.5
51.2
-276.3
29.5
-3.4
2.9
-28.1
7.4
277.4
31.7
194.3
25.2
-120.5
12.6
-113.8
33.5
494.4
28.8
-99.9
37.1
229.6
11.7
-196.9
39.1
-295.9
18.7
-192.7
-1.1
-355.2
20.5...

Problem Set 2: Pearson’s correlation (7
pts)
Research Scenario: Is there a positive
relationship between grit and GPA in high school seniors? A
researcher examined this issue by having students beginning their
senior year of high school complete a grit inventory using a
Likert-based scale (range 1 – 7), where higher numbers indicate
more “grit”. GPA was self-reported (scale 0 – 4.0). Enter the data
shown here into SPSS to assess whether there is a positive
relationship between grit and...

What role could the governance of ethics have played
if it had been in existence in the organization? Assess the
leadership of Enron from an ethical perspective.
THE FALL OF ENRON: A STAKEHOLDER FAILURE
Once upon a time, there was a gleaming headquarters
office tower in Houston, with a giant tilted "£"' in front, slowly
revolving in the Texas sun. The Enron Corporation, which once
ranked among the top Fortune 500 companies, collapsed in 2001 under
a mountain of debt...

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INNOVATION
Deep Change: How Operational Innovation Can Transform Your
Company
by
Michael Hammer
From the April 2004 Issue
Save
Share
8.95
In 1991, Progressive Insurance, an automobile insurer based in
Mayfield Village, Ohio, had approximately $1.3 billion in sales. By
2002, that figure had grown to $9.5 billion. What fashionable
strategies did Progressive employ to achieve sevenfold growth in
just over a decade? Was it positioned in a high-growth industry?
Hardly. Auto insurance is a mature, 100-year-old industry...

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