Inferential statistics are typically contrasted with _____ statistics. - Answer-descriptive
Which of the following is a defining characteristic of experiments? - Answer-Manipulations
In an experiment, the variable that the researcher manipulates is called the _____ variable. - Answer-independ...
BESC 3010 Exam 2 Questions with
Correct Answers
Inferential statistics are typically contrasted with _____ statistics. - Answer-descriptive
Which of the following is a defining characteristic of experiments? - Answer-
Manipulations
In an experiment, the variable that the researcher manipulates is called the _____
variable. - Answer-independent
If a researcher is able to survey 99% of all students enrolled in statistics classes at a
college, then that researcher has gathered data from a(n)... - Answer-sample
The variable that is measured as the outcome in an experiment is called the _____
variable. - Answer-dependent
A question that asks a person how strong their motivations for religious participation are
using a 1-7 rating scale is at _____ level of measurement. - Answer-either the ordinal or
the interval
For a study to be considered an experiment, it must have... - Answer-a manipulation
In an experiment that looks at the effect of different teaching methods on student
learning, the independent variable is... - Answer-the teaching method
If a web marketer compares the effectiveness of two online ads in getting clicks by
gathering data from 3 million Internet shoppers, the population of interest is... - Answer-
all internet shoppers
A score's frequency is determined by... - Answer-how often it occurs in the data set.
Which type of chart would be most appropriate for a nominal variable? - Answer-bar
graph
A distribution such as income that has most of the people at the bottom or middle but a
few people with extremely high scores, is referred to as... - Answer-positively skewed
A histogram is appropriate when the data are... - Answer-quantitative
One visual difference between a bar chart and a histogram is that in a histogram... -
Answer-the adjacent bars touch but in a bar chart they are separate.
A normal distribution has a value of skewness that is _____. - Answer-near zero
, A frequency bar graph would be most appropriate for which measurement scales? -
Answer-Nominal or ordinal
The normal distribution is... - Answer-mesokurtic
A histogram is not appropriate when the data are... - Answer-at the interval or ratio level
of measurement.
A normal distribution generally has _____ skew. - Answer-no
A uniform distribution is... - Answer-platykurtic
Which measure of central tendency works for nominal variables? - Answer-Mode
Which measure of central tendency is most appropriate for skewed distributions? -
Answer-Median
The three most common measures of central tendency are: - Answer-mean, median,
mode
What is the minimum level of measurement needed to calculate the mode? - Answer-
nominal
Which of these measures is LEAST affected by outliers? - Answer-median
Which measure of central tendency is LEAST efficient? - Answer-mode
Which of the following is NOT a measure of central tendency? - Answer-standard
deviation
What is the minimum level of measurement needed to calculate the median? - Answer-
ordinal
In a negatively skewed distribution, which measure will generally have the highest
value? - Answer-mode
Which measure of central tendency is MOST influenced by outliers? - Answer-mean
In a positively skewed distribution, which measure will generally have the highest value?
- Answer-mean
What is the minimum level of measurement needed to calculate the mean? - Answer-
interval
Which measure of central tendency is MOST affected by outliers? - Answer-mean
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