Shardena Perry
August 28, 2016
Assignment 1
AN OVERVIEW OF BUSINESS RESEARCH
Circle the correct answer:
1.1 The type of research designed to solve a problem by studying it and implementing a solution
to the problem is called pure/action research.
1.2 The
Difference
or
Association
?
Difference
# of
independent/
predictor
variables
1
# of
dependent/
criterion
variables
1
Any
variables
controlled?
Formula for
DF
Example/
Notes
No
df = N-1
Difference
of a one
sample
mean with
a known
population
mean.
Dependen
Difference
or
Association
?
# of
independent/
predictor
variables
# of
dependent/
criterion
variables
Formula for DF
Example/Note
s
1
Any
variable
s
controll
ed?
No
Single
Difference
sample t test
1
df = N-1
Difference of a
one sample
mean with a
known
po
Difference
or
Association
?
Difference
# of
independent/
predictor
variables
1
# of
dependent/
criterion
variables
1
Any
variables
controlled?
Formula for
DF
Example/
Notes
No
df = N-1
Difference
of a one
sample
mean with
a known
population
mean.
Dependen
Week 3
Exercise 1
There was a significant length effect on the number recalled. F(1,12) = 32.00, p
= .000, partial n2 = .727. The short condition had a higher number recall (M=6.00) than
the long condition (2.00). Vividness was not significant, F(1,12)=.0
Week 2
Exercise 1
1. The criminal record mean was 8.0 (SD 2.12). The clean record group mean was
4.0 (SD 2.24). The no information group mean was 5.0 (SD 2.55). The overall test
was statistically significant, F(2, 12) = 4.06, p =.045. The Tukey post hoc t
Week 1
Exercise 1
1. #8:
a)
b)
c)
d)
e)
.22
.71
.86
.77
.99
2. #9
a) 33
b) 12
c) 156
3. #1
a) Independent
b) Dependent
c) Dependent
4. #8
a)
b)
c)
d)
Exercise 2
.19
Almost 1
.72
.97
Exercise 3
Part A. The Importance of Descriptive Statistics
The average or the mean of the students scores is 39.14. Calculating the mean is
the best way to find the ordinary average. The average is not necessarily the same as the
majority, either, which is measured
Week 2
Exercise 1
6. The mean, median and mode all fall at the same midpoint in a normal curve. A
normal curve is symmetrical. The mode is the highest point in the curve, which
falls at the midpoint. The midpoint is the median value and the mean also fall
Week 4
Exercise 1
1. Define the following terms in your own words:
a) A statistical procedure for deciding whether the outcome of your study
supports a particular theory.
b) The .05 significance level is when the null hypothesis is rejected because
there
Week 6 Exercises
1. Alpha is the probability of making a type I error, which is rejecting the null
hypothesis when the null hypothesis is actually true.
Beta is the probability of making a type II error, which is failing to reject the null
hypothesis when