Question 1

NARRBEGIN: Admission to ER
Admission to ER
The following bar chart shows the type of aspirin (if any) given to 100 cardiac patients within 15 minutes of their admission to the emergency room.  NARREND
-{Admission to ER Narrative} In what way does the original bar chart distort the data as compared to a bar chart that starts at zero on the Y-axis (frequency axis)?

Accepted Answer

The answer of NARRBEGIN: Admission to ER
Admission to ER
The following...

Question 2

NARRBEGIN: Credit Hours
Credit Hours
The College of Business at The State University of California produced 3,400 credit hours during Spring Semester, 2011he number and percentage of credit hours produced by each of the four departments in the College of Business is shown below. $$\begin{array} { | l | c c | } 
\hline \text { Department } & \text { Percent } & \text { Count } \
\hline \text { Marketing } & 35.3 & 1.200 \
\text { Management } & 23.5 & 800 \
\text { Finance } & 23.5 & 800 \
\text { Accounting } & 17.6 & 600 \
\hline
\end{array}$$ The following three-dimensional pie chart was constructed from the table above.  NARREND
-Briefly explain why the histogram below is misleading.

Accepted Answer

The answer of NARRBEGIN: Credit Hours
Credit Hours
The College of Business...

Question 3

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-{Home Care Narrative} How many nurses are there in this hospital?

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 4

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-{Home Care Narrative}Which graph do you think is the most appropriate display? Justify your answer.

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 5

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-An online dating service has a quick poll on its website showing the following results. Critique the graph portion of the table. How can it be improved?

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 6

NARRBEGIN: Credit Hours
Credit Hours
The College of Business at The State University of California produced 3,400 credit hours during Spring Semester, 2011he number and percentage of credit hours produced by each of the four departments in the College of Business is shown below. $$\begin{array} { | l | c c | } 
\hline \text { Department } & \text { Percent } & \text { Count } \
\hline \text { Marketing } & 35.3 & 1.200 \
\text { Management } & 23.5 & 800 \
\text { Finance } & 23.5 & 800 \
\text { Accounting } & 17.6 & 600 \
\hline
\end{array}$$ The following three-dimensional pie chart was constructed from the table above.  NARREND
-{Credit Hours Narrative} Construct a two-dimensional pie chart showing the percentages of credit hours produced by the four departments.

Accepted Answer

The answer of NARRBEGIN: Credit Hours
Credit Hours
The College of Business...

Question 7

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-{Home Care Narrative} Which histogram makes the differences in the house calls appear to be the least dramatic?

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 8

NARRBEGIN: Credit Hours
Credit Hours
The College of Business at The State University of California produced 3,400 credit hours during Spring Semester, 2011he number and percentage of credit hours produced by each of the four departments in the College of Business is shown below. $$\begin{array} { | l | c c | } 
\hline \text { Department } & \text { Percent } & \text { Count } \
\hline \text { Marketing } & 35.3 & 1.200 \
\text { Management } & 23.5 & 800 \
\text { Finance } & 23.5 & 800 \
\text { Accounting } & 17.6 & 600 \
\hline
\end{array}$$ The following three-dimensional pie chart was constructed from the table above.  NARREND
-Samantha recorded her amount of exercise time (in minutes) for 100 days. Both of the line charts below were created based on her same data set. Which line chart makes her exercise times look more variable and why?

Accepted Answer

The answer of NARRBEGIN: Credit Hours
Credit Hours
The College of Business...

Question 9

NARRBEGIN: Admission to ER
Admission to ER
The following bar chart shows the type of aspirin (if any) given to 100 cardiac patients within 15 minutes of their admission to the emergency room.  NARREND
-{Admission to ER Narrative} Notice that the Y-axis of the bar chart does not start at a frequency of zero. Create a new bar chart of the displayed data that accurately displays the frequency for each aspirin type.

Accepted Answer

The answer of NARRBEGIN: Admission to ER
Admission to ER
The following...

Question 10

Slopes and trends in a line chart appear to be less steep if you ____________________ the horizontal (time) axis.

Accepted Answer

The answer of Slopes and trends in a line chart...

Question 11

NARRBEGIN: Credit Hours
Credit Hours
The College of Business at The State University of California produced 3,400 credit hours during Spring Semester, 2011he number and percentage of credit hours produced by each of the four departments in the College of Business is shown below. $$\begin{array} { | l | c c | } 
\hline \text { Department } & \text { Percent } & \text { Count } \
\hline \text { Marketing } & 35.3 & 1.200 \
\text { Management } & 23.5 & 800 \
\text { Finance } & 23.5 & 800 \
\text { Accounting } & 17.6 & 600 \
\hline
\end{array}$$ The following three-dimensional pie chart was constructed from the table above.  NARREND
-{Credit Hours Narrative} In what way does the original three-dimensional pie chart distort the data, compared to a two-dimensional pie chart?

Accepted Answer

The answer of NARRBEGIN: Credit Hours
Credit Hours
The College of Business...

Question 12

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-Below are two line charts where the percentage return for a stock is shown over time. The two graphs are made from the same data set.   Explain why these two line charts look different.

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 13

A graph showing trends over time is called a(n) ____________________ chart.

Accepted Answer

The answer of A graph showing trends over time is...

Question 14

NARRBEGIN: Home Care
Home Care
Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below.    NARREND
-{Home Care Narrative} Which histogram makes the differences in the house calls appear to be the most dramatic?

Accepted Answer

The answer of NARRBEGIN: Home Care
Home Care
Data are collected on...

Question 15

In its 2000 report, a company presented the following data regarding its sales (in millions of dollars), and net income (in millions of dollars). $$\begin{array} { | l | c c c c c | } 
\hline \text { Year } & 1996 & 1997 & 1998 & 1999 & 2000 \
\hline \text { Sales } & 70 & 97 & 80 & 55 & 185 \
\text { Net Income } & 1.6 & 5.2 & 4.1 & 2.4 & 7.1 \
\hline
\end{array}$$ The bar chart below was used to present these data.  Assume that you are an unscrupulous statistician and want to make the data appear more positive than they really are. Redraw the graph by being selective about which years to include, getting the desired effect.

Accepted Answer

The answer of In its 2000 report, a company presented...

Question 16

Slopes and trends in a line chart appear to be steeper if you ____________________ the horizontal (time) axis.

Accepted Answer

The answer of Slopes and trends in a line chart...

Quiz 4: Numerical Descriptive Techniques

NARRBEGIN: Home Care Home Care Data are collected on the number of house calls (x) made in a given week by each of 60 nurses in a certain hospital. The same data set is displayed in each of the three histograms below. NARREND -{Home Care Narrative} How many nurses are there in this hospital?

Slopes and trends in a line chart appear to be less steep if you ____________________ the horizontal (time) axis.

A graph showing trends over time is called a(n) ____________________ chart.

Slopes and trends in a line chart appear to be steeper if you ____________________ the horizontal (time) axis.