Topic 1 DQ 2
Hello Dr. Huang and class,
The percentile point data would assist the students stance on Final Exam Form B if all of the
students took all three forms. By just looking at the average scores of the students taking each
form, it does not give a
Chapter Three # 2, 3, 5, 10, 15
o Question 2.Frequency distributions of nominal or ordinal data are customarily plotted using a bar graph. A
bar is drawn for each category, where the height of the bar represents the frequency or number of
members of that
I wanted to give you a bit more help. A lot of you will notice that
MathXL sometimes asks you to use technology to look up zscore, t-statistics, and p-values. Normally, I suggest that
students use online calculators, which you can find easily
Chapter Two # 2, 3, 4, 8, 10
o Question 2.-Continuous or Discrete Variable?
Time of Day-Continuous Variables
Number of Females in class-Discrete Variable
Number of bar presses by a rat in Skinner Box-Discrete Variable
Age of subjec
Chapter One # 1, 2, 4, 5, 8, 9
o Question 1.-Definitions
Population is the complete collection of all elements to be studied. The collection is complete in
the sense that it includes all subjects to be studied.
Sample is the sub -collection of members sel
There are four types of measurement levels which are nominal, ordinal, interval, and ration. In
nominal measurement there are no ordering of the cases. For instance, in a hockey team 15
and 25 are the same thing. On the other hand, ordinal can be ranked i
3. Chapter Nine # 2, 5, 8, 12, 16
10) A population of raw scores is normally distributed with u=60 and o= 14. Determine the z
scores for the following raw scores taken from the population.
a) 76 = 1.14
b) 48 = -0.86
c) 86 = 1.86
d) 60 = 0.00
1. Chapter 6 # 10, 15, 18, 22
10) The Pearson r and Spearman rho correlation coefficients are related. Is this statement
15) In a large introductory sociology course, a professor gives two exams. The professor wants
to determine whether the s
1. Chapter Three # 2, 3, 5, 10, 15
2) How do bar graphs, histograms and frequency polygons differ in constructions? What type
of scaling is appropriate for each?
Bar graphs have a height that represents the frequency or numbers of members of the
PSY-520 Graduate Statistics
Topic 5 Benchmark Correlation and Regression Project
Directions: Use the following information to complete the questions below. While APA format is
not required for the body of this assignment, solid academic writing is expecte
Topic 1 DQ 1
Hello Dr. Huang and class,
Stevens four levels of measurement, nominal, ordinal, interval and ratio scales are just one
model that helps the researcher interpret the data revealed from a research project.
Nominal scales assign numerical categ
Chapter Four # 2, 3, 4, 6, 11, 15, 16, 17, 22, 35, 37
o Question 2.-4 Properties of the mean.
1. The mean is sensitive to the exact value of all the scores in the distribution. For example,
adding a single score will change the mean.
2. The sum of the dev