Chapter 01 - What is Statistics?
Chapter 1
What is Statistics?
1.
a.
c.
e.
Interval
Interval
Ordinal
b.
d.
f.
Ratio
Nominal
Ratio (LO6)
2.
a.
c.
Ratio
Ratio
b.
d.
Nominal
Ratio (LO6)
3.
Answer will vary. (LO6)
4.
a.
c.
b.
d.
Population
Sample (LO3)
5.
Qua
Chapter 12
Analysis of Variance
True/False
1. The F distribution's curve is positively skewed.
Answer: True
Difficulty: Medium
Goal: 1
2. The test statistic used in ANOVA is Student's t.
Answer: False
Difficulty: Easy
Goal: 1
3. There is one, unique F dis
Chapter 1
What is Statistics?
True/False
1. A population is a collection of all individuals, objects, or measurements of interest.
Answer: True
Difficulty: Easy
Goal: 2
2. A sample is a portion or part of the population of interest.
Answer: True
Difficult
Chapter 3
Describing Data: Numerical Measures
True/False
1. A value that is typical or representative of the data is referred to as a measure of central location.
Answer: True
Difficulty: Easy
Goal: 1
2. The arithmetic mean is the sum of the observations
Chapter 2
Describing Data: Frequency Distributions and Graphic Presentations
True/False
1. A frequency distribution groups data into classes showing the number of observations in each class.
Answer: True
Difficulty: Easy
Goal: 3
2. A frequency distributio
Chapter 17
Nonparametric Methods: Chi-Square Applications
True/False
1. Nonparametric tests require no assumptions about the shape of the population distribution.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: AS
2. The claim that "male and female students
Chapter 16
Time Series and Forecasting
True/False
1. A time series is a collection of data recorded over a period of time, usually monthly, quarterly, or
yearly.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: AS
2. Long-term forecasts are usually from one y
Chapter 4
Describing Data: Displaying and Exploring Data
True/False
1. A dot plot and a scatter diagram are different names for the same graph.
Answer: False
Difficulty: Easy
Goal: 1
2. A dot plot is an easy way to represent the relationship between two v
Chapter 14
Multiple Regression and Correlation Analysis
True/False
1. Multiple regression analysis is used when two or more independent variables are used to predict a
value of a single dependent variable.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: AS
2
Running head: Inferential Research and Statistics Project, Part 1
Inferential Research and Statistics Project, Part 1
Ricky Johnson
PSY/315
02/27/2017
University of Phoenix
Inferential Research and Statistics Project, Part 1
Nothing has a stronger influen
INFERENTIAL RESEARCH AND
STATISTICS PROJECT
Part 3 |Ricky Johnson
University Of Phoenix| PSY 315
3
INtroduc
tion
I.
Define research
problem and
objective.
II.
Review literature.
STEPS OF
THE
RESEARC
H
PROCESS
III. Formulate a
hypothesis.
IV. Develop and
i
Chapter 19
Statistical Process Control and Quality Management
True/False
1. Dr. W. Edwards Deming proposed a philosophy of managing quality based on list of 14 points.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: REF
2. The Malcolm Baldridge National Qual
Chapter 5
A Survey of Probability Concepts
True/False
1. Based on a classical approach, the probability of an event is defined as the number of favorable
outcomes divided by the total number of possible outcomes.
Answer: True
Difficulty: Medium
Goal: 2
2.
Chapter 8
Sampling Methods and the Central Limit Theorem
True/False
1. In stratified random sampling, a population is divided into strata using naturally occurring geographic
or other boundaries. Then strata are randomly selected and a random sample is co
Chapter 7
Continuous Probability Distributions
True/False
1. The Empirical Rule of probability can be applied to the uniform probability distribution.
Answer: False
Difficulty: Medium
Goal: 1
2. Areas within a continuous probability distribution represent
Chapter 9
Estimation and Confidence Intervals
True/False
1. A point estimate is a single value used to estimate a population parameter.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: AS
2. A point estimate is a range of values used to estimate a population
Chapter 11
Two Samples Tests of Hypothesis
True/False
1. If the null hypothesis states that there is no difference between the mean income of males and the
mean income of females, then the test is one-tailed.
Answer: False
Difficulty: Easy
Goal: 1
AACSB:
Chapter 15
Index Numbers
True/False
1. An index number is a percent that measures the change in price, quantity, value, or some other item of
interest from one time to another.
Answer: True
Difficulty: Easy
Goal: 1
AACSB: AS
2. An index of 239.2 and an in
Chapter 10
One-Sample Tests of Hypothesis
True/False
1. Two examples of a hypothesis are: 1) mean monthly income from all sources for senior citizens is
$841 and 2) twenty percent of juvenile offenders ultimately are caught and sentenced to prison.
Answer
Chapter 18
Nonparametric Methods: Analysis of Ranked Data
True/False
1. Three testsrank correlation, Kruskal-Wallis and Wilcoxon signed rank testrequire that the data be
at least ordinal (ranked) level of measurement.
Answer: True
Difficulty: Easy
Goal: 1
Chapter 6
Discrete Probability Distributions
True/False
1. The Poisson probability distribution is always negatively skewed.
Answer: False
Difficulty: Easy
Goal: 6
2. A random variable is assigned numerical values based on the outcomes of an experiment.
A