QMB 3200 REVIEWED EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The mode of this sample is ________.
7
The following data represents the ages of a household that
consists of five people.
The mode of this data set is ________.
7
The daily high temperature in Philadelphia over an eight-day
period is shown below.
The median for this data set is ________.
73.5
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days
.The median of this sample is ________.
7.0
,If the data set does not have a mode, Data Analysis ToolPak in
Excel displays "#N/A" in the spreadsheet cell.
True
Data Analysis ToolPak in Excel can be used to determine the
mode for categorical data.
False
A weighted mean allows you to assign more weight to certain
values and less weight to others.
True
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The variance of this sample is ________.
7.0
The ________ is the best measure of central tendency for
categorical data.
mode
The MODE SNGL function in Excel will correctly identify more
than one mode in a data set.
False
Some data sets may not have a mode.
True
,________ is a single value used to describe the center point of
a data set.
Central tendency
There are five rows of students seated in a statistics class. The
following table shows the number of students in each row and
the average score of the most recent exam for that row.
What is the average exam score for this class?
85.7
The ________ is the value that appears most often in a data
set.
mode
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The mean of this sample is ________.
6.0
Outliers are extreme values above or below the mean that
require special consideration.
True
When outliers are present in the data set, the ________ is the
best choice to measure central tendency.
median
, The following data set represents the age of a random sample
of cars on the road today.
The variance of this sample is ________.
19.2
The ________ is the most common and most important
measure of variability in the field of statistics.
standard deviation
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The standard deviation of this sample is ________.
NOT 2.0
2.6
The unit of measure for the variance is the same as the unit of
measure for the original data.
False
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The range of this sample is ________.
7
Suppose the average price for new cars in 2012 has a mean of
$30,100 and a standard deviation of $5,600. Based on
QUESTIONS WITH 100% CORRECT
ANSWERS
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The mode of this sample is ________.
7
The following data represents the ages of a household that
consists of five people.
The mode of this data set is ________.
7
The daily high temperature in Philadelphia over an eight-day
period is shown below.
The median for this data set is ________.
73.5
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days
.The median of this sample is ________.
7.0
,If the data set does not have a mode, Data Analysis ToolPak in
Excel displays "#N/A" in the spreadsheet cell.
True
Data Analysis ToolPak in Excel can be used to determine the
mode for categorical data.
False
A weighted mean allows you to assign more weight to certain
values and less weight to others.
True
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The variance of this sample is ________.
7.0
The ________ is the best measure of central tendency for
categorical data.
mode
The MODE SNGL function in Excel will correctly identify more
than one mode in a data set.
False
Some data sets may not have a mode.
True
,________ is a single value used to describe the center point of
a data set.
Central tendency
There are five rows of students seated in a statistics class. The
following table shows the number of students in each row and
the average score of the most recent exam for that row.
What is the average exam score for this class?
85.7
The ________ is the value that appears most often in a data
set.
mode
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The mean of this sample is ________.
6.0
Outliers are extreme values above or below the mean that
require special consideration.
True
When outliers are present in the data set, the ________ is the
best choice to measure central tendency.
median
, The following data set represents the age of a random sample
of cars on the road today.
The variance of this sample is ________.
19.2
The ________ is the most common and most important
measure of variability in the field of statistics.
standard deviation
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The standard deviation of this sample is ________.
NOT 2.0
2.6
The unit of measure for the variance is the same as the unit of
measure for the original data.
False
The following data represents the number of Sony TVs sold
per day at a particular Costco over a random sample of five
business days.
The range of this sample is ________.
7
Suppose the average price for new cars in 2012 has a mean of
$30,100 and a standard deviation of $5,600. Based on
