BESC 3010 Exam 2 Questions and
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
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
