Be able to identify Descriptive Statistics
Be able to identify Levels of Measurement
Be able to identify Independent and Dependent Variables
Be able to calculate Measures of Central Tendency
Be able to calculate Variability
Descriptive Statistics are numb
1. What do descriptive statistics tell us? Descriptive statistics are used to
describe the basic features of the data in a study. They provide simple
summaries about the sample and the measures. Together with simple graphic
analysis, they form the basis o
TEST 3 EXTRA CREDIT
Due Nov 14 at 11:59pm
Points 50
Questions 10
Time Limit None
Instructions
THIS IS AN EXTRA CREDIT TEST.IT WILL COVER THE SAME MATERIAL FROM TEST 3. THERE WILL BE 10
PROBLEMS AND IT WILL BE WORTH 50 POINTS. PLEASE REVIEW THE "REVIEW OF
Lab: t-test
Directions: Use Excel to compute the t test for independent samples.
Problem: Use the following data and Excel to write a brief paragraph about whether the in-home
counseling is equally effective as the out-of-home treatment for two separate g
Lab 1: Central Tendency and Standard Deviation
Directions: Use Excel to compute descriptive statistics.
Problem: You are the manger of a fast food store. Part of your job is to report to the boss at the end of each
day which special is selling best. Use y
CORRELATION NOTES
1. What do we know about Correlation?
a. The relationship between variables, and not the difference between groups, is being
examined.
b. Only two variables are being used.
c. The appropriate test statistic to use is the t-test for the c
EPR 214 Test 4: Study Topics (ANOVA, correlation, regression, chi-square)
1. When to use an ANOVA
2. When to use correlation
3. When to use regression
4. When to use chi-square
5. What is the test statistic for each of the 4 tests
6. Why do we use a post-
Page 1 of 2
Here are the 5 steps and the computation of the Z-test statistics (for the one sample Z-test):
1. State the null and research hypotheses:
*the null hypothesis states the sample average is equal to the population average
*the research hypothesi
Score for this quiz: 47 out of 50
Submitted Jul 22 at 11:03am
This attempt took 62 minutes.
Question 1
1
3 / 3 pts
A researcher wants to know if there is a difference between
freshmen and seniors on the ACT. What is the direction for
this research hypothe
DIRECTIONS: THIS TEST WILL COVER MATERIAL
RELATED TO HYPOTHESIS TESTING FOR ONE AND
TWO SAMPLE CASES. THE TEST IS WORTH 100
POINTS. YOU WILL THREE (3) HOURS TO COMPLETE
THE TEST. MAKE SURE TO UPLOAD ANY WORK
REQUIRED. GOOD LUCK! REMEMBER ONCE YOU
BEGIN YO
Question 1
2 / 2 pts
For a correlation, we know that the relationship between
variables, and not the difference between groups, is being
examined.
Correct!
True
False
Question 2
0 / 2 pts
The correlation coefficient can not act as its own test
statistic
Y
Question 1
2 / 2 pts
Analysis of Variance (ANOVA) is a statistical method used to
test differences between two or more means.
Correct!
True
False
Question 2
2 / 2 pts
ANOVA is used to test general rather than specific
differences among means.
Correct!
Tru
Score for this quiz: 10 out of 10
Submitted Jun 10 at 11:09am
This attempt took 7 minutes.
Question 1
2 / 2 pts
Descriptive statistics are used to organize and describe the characteristics of a
collection of data.
Correct!
True
False
Question 2
2 / 2 pts
Score for this quiz: 4 out of 10
Submitted Jun 10 at 1:46pm
This attempt took 14 minutes.
Question 1
2 / 2 pts
The normal curve is symmetrical in shape.
Correct!
True
False
Question 2
0 / 2 pts
On all normal curves the area between the mean and 1 standard
Question 1
2 / 2 pts
1. What type of statistic is used to organize the
characteristics of a collection of data?
descriptive
hypothetical
inferential
social
Question 2
2 / 2 pts
2. A hypothesis states, in part, that poverty increases as
years of education
Score for this quiz: 10 out of 10
Submitted Jun 10 at 11:18am
This attempt took 7 minutes.
Question 1
2 / 2 pts
Which of the following is an example of a continuous variable?
flipping a coin
fnumber of heads when flipping three coins
Correct!
weight of st