Question 1

Percentage polygons are plotted at the boundaries of the class groupings.

Accepted Answer

A) True 
 B)False

Question 2

A side-by-side chart is two histograms plotted side-by-side.

Accepted Answer

A) True 
 B)False

Question 3

Instruction 2.3
A survey was conducted to determine how people rated the quality of programming available on television. Respondents were asked to rate the overall quality from 0 (no quality at all) to 100 (extremely good quality). The stem-and-leaf display of the data is shown below.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Lesves } \
\hline 3 & 24 \
\hline 4 & \begin{array} { l } 
0347899 \
9
\end{array} \
\hline 5 & 0112345 \
\hline 6 & 12566 \
\hline 7 & 01 \
\hline 8 & \
\hline 9 & 2 \
\hline
\end{array}$$
-Referring to Instruction 2.3,what percentage of the respondents rated overall television quality with a rating between 50 and 75 (inclusive)?

Accepted Answer

A)  40 
B)  44 
C)  11 
D)  56 
A)  40 
B)  44 
C)  11 
D)  56

Question 4

Instruction 2.5
The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in the Supreme Court of Victoria.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Leaves } \
\hline 1 \mathrm {~L} & 23444 \
\hline 1 \mathrm { H } & 7899 \
\hline 2 \mathrm {~L} & 2222345 \
& 5 \
\hline 2 \mathrm { H } & 678889 \
\hline 3 \mathrm {~L} & 001113 \
\hline 3 \mathrm { H } & 5778 \
\hline 4 \mathrm {~L} & 0234 \
\hline 4 \mathrm { H } & 5579 \
\hline 5 \mathrm {~L} & 1124 \
\hline 5 \mathrm { H } & 66 \
\hline 6 \mathrm {~L} & 15 \
\hline 6 \mathrm { H } & 8 \
\hline
\end{array}$$ Note: 1L means the 'low teens' - 10, 11, 12, 13, or 14; 1H means the 'high teens' - 15, 16, 17, 18, or 19; 2L means the 'low twenties' - 20, 21, 22, 23, or 24, etc.
-Referring to Instruction 2.5,locate the first leaf -that is,the lowest valued leaf with the lowest valued stem.This represents a wait of _________ months.

Accepted Answer

The answer of Instruction 2.5
The Stem-and-Leaf display below contains data...

Question 5

Figure 2.2
The histogram below represents scores achieved by 200 job applicants on a personality profile.  
-Referring to the histogram from Figure 2.2,the number of job applicants who scored 50 or above is _________.

Accepted Answer

The answer of Figure 2.2
The histogram below represents scores achieved...

Question 6

Instruction 2.6
The frequency distribution below represents the rents of 250 randomly selected federally subsidised apartments in Sydney.
 $$\begin{array} { | l | l | } 
\hline \text {Rent in } \$ & \text { Frequency } \
\hline 300 \text { but less than } 400 & 113 \
\hline 400 \text { but less than } 500 & 85 \
\hline 500 \text { but less than } 600 & 32 \
\hline 600 \text { but less than } 700 & 16 \
\hline 700 \text { but less than } 800 & 4 \
\hline
\end{array}$$
-Referring to Instruction 2.6,_________% of the apartments rented for at least $500.

Accepted Answer

The answer of Instruction 2.6
The frequency distribution below represents the...

Question 7

A marketing analyst is evaluating the effectiveness of advertising by comparing weekly sales volumes and weekly advertising expenditures.Which of the following is the most appropriate for displaying this information?

Accepted Answer

A)  A scatter plot. 
B)  A pie chart. 
C)  A histogram. 
D)  A bar chart. 
A)  A scatter plot. 
B)  A pie chart. 
C)  A histogram. 
D)  A bar chart.

Question 8

A bar chart cannot have gaps between the bars,but a histogram can have gaps between the bars.

Accepted Answer

A) True 
 B)False

Question 9

Instruction 2.8
Given below is the stem-and-leaf display representing the amount of detergent used in litres (with leaves in 10ths of litres) in a month by 25 drive-through car wash operations in Auckland.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Leaves } \
\hline 9 & 147 \
\hline 10 & 02238 \
\hline 11 & 135566777 \
\hline 12 & 223489 \
\hline 13 & 02 \
\hline
\end{array}$$
-Referring to Instruction 2.8,if a percentage histogram for the detergent data is constructed,using '9.0 but less than 9.9 litres' as the first class,_________% of drive-through car wash operations use less than 12 litres of detergent in a month.

Accepted Answer

The answer of Instruction 2.8
Given below is the stem-and-leaf display...

Question 10

When studying the simultaneous responses to two categorical questions,you should set up a

Accepted Answer

A)  contingency table. 
B)  histogram. 
C)  frequency distribution table. 
D)  cumulative percentage distribution table. 
A)  contingency table. 
B)  histogram. 
C)  frequency distribution table. 
D)  cumulative percentage distribution table.

Question 11

Instruction 2.5
The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in the Supreme Court of Victoria.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Leaves } \
\hline 1 \mathrm {~L} & 23444 \
\hline 1 \mathrm { H } & 7899 \
\hline 2 \mathrm {~L} & 2222345 \
& 5 \
\hline 2 \mathrm { H } & 678889 \
\hline 3 \mathrm {~L} & 001113 \
\hline 3 \mathrm { H } & 5778 \
\hline 4 \mathrm {~L} & 0234 \
\hline 4 \mathrm { H } & 5579 \
\hline 5 \mathrm {~L} & 1124 \
\hline 5 \mathrm { H } & 66 \
\hline 6 \mathrm {~L} & 15 \
\hline 6 \mathrm { H } & 8 \
\hline
\end{array}$$ Note: 1L means the 'low teens' - 10, 11, 12, 13, or 14; 1H means the 'high teens' - 15, 16, 17, 18, or 19; 2L means the 'low twenties' - 20, 21, 22, 23, or 24, etc.
-Referring to Instruction 2.5,if a frequency distribution with equal-sized classes was made from this data,and the first class was '0 but less than 10',the relative frequency of the last class would be _________.

Accepted Answer

Unfortunately, the stem-and-leaf display

Question 12

In order to compare one large batch of numerical data to another,a _________ distribution must be developed from the frequency distribution.

Accepted Answer

relative f

Question 13

Instruction 2.8
Given below is the stem-and-leaf display representing the amount of detergent used in litres (with leaves in 10ths of litres) in a month by 25 drive-through car wash operations in Auckland.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Leaves } \
\hline 9 & 147 \
\hline 10 & 02238 \
\hline 11 & 135566777 \
\hline 12 & 223489 \
\hline 13 & 02 \
\hline
\end{array}$$
-Referring to Instruction 2.8,construct a cumulative percentage distribution for the detergent data if the corresponding frequency distribution uses '9.0 but less than 9.9' as the first class.

Accepted Answer

None

Question 14

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.

Accepted Answer

A) True 
 B)False

Question 15

Instruction 2.11
The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender.
 $$\begin{array} { | l | l | l | } 
\hline \begin{array} { l } 
\text { Own a Portable } \
\text { DVD Player }
\end{array} & \text { Male } & \text { Fermale } \
\hline \text { Yes } & 96 & 40 \
\hline \text { No } & 224 & 240 \
\hline
\end{array}$$
-Referring to Instruction 2.11,_________ % of the 600 were males who did not own a portable DVD.

Accepted Answer

The answer of Instruction 2.11
The table below contains the number...

Question 16

Instruction 2.11
The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender.
 $$\begin{array} { | l | l | l | } 
\hline \begin{array} { l } 
\text { Own a Portable } \
\text { DVD Player }
\end{array} & \text { Male } & \text { Fermale } \
\hline \text { Yes } & 96 & 40 \
\hline \text { No } & 224 & 240 \
\hline
\end{array}$$
-Referring to Instruction 2.11,of the females in the sample,_________ % did not own a portable DVD.

Accepted Answer

The answer of Instruction 2.11
The table below contains the number...

Question 17

Instruction 2.5
The Stem-and-Leaf display below contains data on the number of months between the date a civil suit is filed and when the case is actually adjudicated for 50 cases heard in the Supreme Court of Victoria.
 $$\begin{array} { | l | l | } 
\hline \text { Stem } & \text { Leaves } \
\hline 1 \mathrm {~L} & 23444 \
\hline 1 \mathrm { H } & 7899 \
\hline 2 \mathrm {~L} & 2222345 \
& 5 \
\hline 2 \mathrm { H } & 678889 \
\hline 3 \mathrm {~L} & 001113 \
\hline 3 \mathrm { H } & 5778 \
\hline 4 \mathrm {~L} & 0234 \
\hline 4 \mathrm { H } & 5579 \
\hline 5 \mathrm {~L} & 1124 \
\hline 5 \mathrm { H } & 66 \
\hline 6 \mathrm {~L} & 15 \
\hline 6 \mathrm { H } & 8 \
\hline
\end{array}$$ Note: 1L means the 'low teens' - 10, 11, 12, 13, or 14; 1H means the 'high teens' - 15, 16, 17, 18, or 19; 2L means the 'low twenties' - 20, 21, 22, 23, or 24, etc.
-Referring to Instruction 2.5,the person who has the largest leaf associated with the smallest stem visited the facility_________ times.

Accepted Answer

The answer of Instruction 2.5
The Stem-and-Leaf display below contains data...

Question 18

Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 companies from New Zealand.There appears to be a positive relationship between total revenue and the number of employees.

Accepted Answer

A) True 
 B)False

Question 19

Instruction 2.10
The table below contains the opinions of a sample of 200 people broken down by gender about the latest government plan to eliminate restraint of trade exemptions for professional sporting leagues.
 $$\begin{array} { | l | l | l | l | l | } 
\hline & \text { For } & \text { Netural } & \text { Ageinst } & \text { Totals } \
\hline \text { Female } & 38 & 54 & 12 & 104 \
\hline \text { Male } & 12 & 39 & 48 & 96 \
\hline \text { Totals} & 50 & \mathbf { 5 0 } & 60 & 200 \
\hline
\end{array}$$
-Referring to Instruction 2.10,construct a table of total percentages.

Accepted Answer

None

Question 20

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

Accepted Answer

A) True 
 B)False

Percentage polygons are plotted at the boundaries of the class groupings.

A side-by-side chart is two histograms plotted side-by-side.

Figure 2.2 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Figure 2.2,the number of job applicants who scored 50 or above is _________.

A marketing analyst is evaluating the effectiveness of advertising by comparing weekly sales volumes and weekly advertising expenditures.Which of the following is the most appropriate for displaying this information?

A bar chart cannot have gaps between the bars,but a histogram can have gaps between the bars.

When studying the simultaneous responses to two categorical questions,you should set up a

In order to compare one large batch of numerical data to another,a _________ distribution must be developed from the frequency distribution.

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.

Instruction 2.11 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. Own a Portable DVD Player Male Fermale Yes 96 40 No 224 240 -Referring to Instruction 2.11,_________ % of the 600 were males who did not own a portable DVD.

Instruction 2.11 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. Own a Portable DVD Player Male Fermale Yes 96 40 No 224 240 -Referring to Instruction 2.11,of the females in the sample,_________ % did not own a portable DVD.

Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 companies from New Zealand.There appears to be a positive relationship between total revenue and the number of employees.

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

Defining and Collecting Data

Numerical Descriptive Measures

Basic Probability

Some Important Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Hypothesis Testing: Two-Sample Tests

Analysis of Variance

Simple Linear Regression

Introduction to Multiple Regression

Time-Series Forecasting and Index Numbers

Chi-Square Tests

Multiple Regression Model Building

Decision Making

Statistical Applications in Quality Management

Further Non-Parametric Tests

Filters

Exam 2: Organising and Visualising Data

Percentage polygons are plotted at the boundaries of the class groupings.

A side-by-side chart is two histograms plotted side-by-side.

Figure 2.2 The histogram below represents scores achieved by 200 job applicants on a personality profile. -Referring to the histogram from Figure 2.2,the number of job applicants who scored 50 or above is _________.

A marketing analyst is evaluating the effectiveness of advertising by comparing weekly sales volumes and weekly advertising expenditures.Which of the following is the most appropriate for displaying this information?

A bar chart cannot have gaps between the bars,but a histogram can have gaps between the bars.

When studying the simultaneous responses to two categorical questions,you should set up a

In order to compare one large batch of numerical data to another,a _________ distribution must be developed from the frequency distribution.

A good choice for the number of class groups to use in constructing frequency distribution is to have at least 5 but no more than 15 class groups.

Instruction 2.11 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. Own a Portable DVD Player Male Fermale Yes 96 40 No 224 240 -Referring to Instruction 2.11,_________ % of the 600 were males who did not own a portable DVD.

Instruction 2.11 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. Own a Portable DVD Player Male Fermale Yes 96 40 No 224 240 -Referring to Instruction 2.11,of the females in the sample,_________ % did not own a portable DVD.

Given below is the scatter plot of the number of employees and the total revenue ($millions)of 20 companies from New Zealand.There appears to be a positive relationship between total revenue and the number of employees.

One of the advantages of a pie chart is that it clearly shows that the total of all the categories of the pie adds to 100%.

Defining and Collecting Data

Numerical Descriptive Measures

Basic Probability

Some Important Discrete Probability Distributions

The Normal Distribution and Other Continuous Distributions

Sampling Distributions

Confidence Interval Estimation

Fundamentals of Hypothesis Testing: One-Sample Tests

Hypothesis Testing: Two-Sample Tests

Analysis of Variance

Simple Linear Regression

Introduction to Multiple Regression

Time-Series Forecasting and Index Numbers

Chi-Square Tests

Multiple Regression Model Building

Decision Making

Statistical Applications in Quality Management

Further Non-Parametric Tests

Filters