Question 1

Which of the following statements is false?

Accepted Answer

A) Relative frequencies are often useful in a presentation because nearly everybody understands fractional parts when expressed as percents. 
B) Relative frequencies are particularly useful when comparing the frequency distributions of two different size sets of data. 
C) The histogram of a normal sample should have a distribution shape that is skewed. 
D) A stem-and-leaf display contains all the information needed to create a histogram. 
A) Relative frequencies are often useful in a presentation because nearly everybody understands fractional parts when expressed as percents. 
B) Relative frequencies are particularly useful when comparing the frequency distributions of two different size sets of data. 
C) The histogram of a normal sample should have a distribution shape that is skewed. 
D) A stem-and-leaf display contains all the information needed to create a histogram.

Question 2

Inferential statistics transform information into knowledge.

Accepted Answer

A) True 
 B)False

Question 3

Suppose a sample size of 50 is desired and the population consists of 2,500 names in alphabetical order.The jth,or systematic sampling number would be:

Accepted Answer

A) 50. 
B) 100. 
C) 250. 
D) 500. 
A) 50. 
B) 100. 
C) 250. 
D) 500.

Question 4

Consider the terms: information,data,and knowledge.From a statistical standpoint,list these terms in order of increasing usefulness in making decisions.

Accepted Answer

A) information,data,and knowledge 
B) data,information,and knowledge 
C) knowledge,information,and data 
D) knowledge,data,and information 
A) information,data,and knowledge 
B) data,information,and knowledge 
C) knowledge,information,and data 
D) knowledge,data,and information

Question 5

Which analytical tool is often used to separate the "vital few" from the "trivial many"?

Accepted Answer

A) Pareto diagram 
B) pie chart 
C) line chart 
D) histogram 
A) Pareto diagram 
B) pie chart 
C) line chart 
D) histogram

Question 6

Ratio data indicate both rank and distance from a natural zero,with ratios of two measures having meaning.

Accepted Answer

A) True 
 B)False

Question 7

Statistics provides business functional areas with tools to make decisions under conditions of uncertainty.

Accepted Answer

A) True 
 B)False

Question 8

Companies are often interested in knowing how customers learned about their products.They often solicit this information on mail-in warranty cards.The customers' responses for a particular product were gathered and the data are presented in the pie chart below.   What percentage of respondents learned about the product through television or the Internet?

Accepted Answer

A) 12% 
B) 39% 
C) 51% 
D) 100% 
A) 12% 
B) 39% 
C) 51% 
D) 100%

Question 9

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The data presented below were collected on the amount of time,in hours;it takes an employee,to process an order at a local plumbing wholesaler.
  
-Construct a frequency distribution of the data.

Accepted Answer

The answer of THE NEXT QUESTIONS ARE BASED ON THE...

Question 10

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a recent marketing experiment,consumers were given one of four different types of dishwashing detergent and asked to use it for a month.At the end of that time they were asked to rate the detergent in terms of overall quality.The results are presented below.
  
-What percentage of the consumers rated their detergent below average?

Accepted Answer

A) 41.0% 
B) 59.0% 
C) 17.5% 
D) 18.9% 
A) 41.0% 
B) 59.0% 
C) 17.5% 
D) 18.9%

Question 11

The 2005 mobile phone manufacturers' global market shares were as follows: Nokia 26.9%,Motorola 16.9%,Ericson 10.5%,Samsung 6.2%,Panasonic 5.5%,others (Siemens,Alcatel,Mitsubishi,Philips,NEC,and more)34.0%.Present this information in a pie chart.

Accepted Answer

The answer of The 2005 mobile phone manufacturers' global market...

Question 12

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Suppose you own a DVD rental store.
-Give an example of a question where testing a hypothesis about a parameter would be helpful.

Accepted Answer

Are weekend sales at

Question 13

Numerical variables can be subdivided into two types.What are they?

Accepted Answer

A) diverse and categorical 
B) discrete and continuous 
C) nominal and progressive 
D) cross-sectional and discrete 
A) diverse and categorical 
B) discrete and continuous 
C) nominal and progressive 
D) cross-sectional and discrete

Question 14

The statement "The price of a Canon digital camera is likely to be lower in three months than it is now" is arrived at by the use of descriptive statistics.

Accepted Answer

A) True 
 B)False

Question 15

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Suppose you own a DVD rental store.
-Give an example of a forecasting question.

Accepted Answer

Based on the store's rental sa

Question 16

As part of the graduation paperwork,seniors at a particular college were asked to indicate their post-graduation plans.Results showed that 15% planned to start graduate school right after college graduation.Is this an example of descriptive or inferential statistics?

Accepted Answer

Descriptiv

Question 17

A department of mathematical sciences has majors in four areas.
   
If a pie chart is constructed for these data,what would be the percentage of the graph for each major?

Accepted Answer

The answer of A department of mathematical sciences has majors...

Question 18

A histogram is the best graphical tool to display qualitative data.

Accepted Answer

A) True 
 B)False

Question 19

Of those in the sample who went partying the weekend before the final exam,what percentage of them did poorly in the exam?

Accepted Answer

53 out of

Question 20

Cross tables can be used for summarizing both qualitative and quantitative data.

Accepted Answer

A) True 
 B)False

Which of the following statements is false?

Inferential statistics transform information into knowledge.

Suppose a sample size of 50 is desired and the population consists of 2,500 names in alphabetical order.The j^th,or systematic sampling number would be:

Consider the terms: information,data,and knowledge.From a statistical standpoint,list these terms in order of increasing usefulness in making decisions.

Which analytical tool is often used to separate the "vital few" from the "trivial many"?

Ratio data indicate both rank and distance from a natural zero,with ratios of two measures having meaning.

Statistics provides business functional areas with tools to make decisions under conditions of uncertainty.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The data presented below were collected on the amount of time,in hours;it takes an employee,to process an order at a local plumbing wholesaler. -Construct a frequency distribution of the data.

The 2005 mobile phone manufacturers' global market shares were as follows: Nokia 26.9%,Motorola 16.9%,Ericson 10.5%,Samsung 6.2%,Panasonic 5.5%,others (Siemens,Alcatel,Mitsubishi,Philips,NEC,and more)34.0%.Present this information in a pie chart.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Suppose you own a DVD rental store. -Give an example of a question where testing a hypothesis about a parameter would be helpful.

Numerical variables can be subdivided into two types.What are they?

The statement "The price of a Canon digital camera is likely to be lower in three months than it is now" is arrived at by the use of descriptive statistics.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Suppose you own a DVD rental store. -Give an example of a forecasting question.

As part of the graduation paperwork,seniors at a particular college were asked to indicate their post-graduation plans.Results showed that 15% planned to start graduate school right after college graduation.Is this an example of descriptive or inferential statistics?

A department of mathematical sciences has majors in four areas. If a pie chart is constructed for these data,what would be the percentage of the graph for each major?

A histogram is the best graphical tool to display qualitative data.

Of those in the sample who went partying the weekend before the final exam,what percentage of them did poorly in the exam?

Cross tables can be used for summarizing both qualitative and quantitative data.

Describing Data: Numerical

Probability

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Hypothesis Testing: Additional Topics

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

Exam 1: Describing Data: Graphical

Which of the following statements is false?

Inferential statistics transform information into knowledge.

Suppose a sample size of 50 is desired and the population consists of 2,500 names in alphabetical order.The jth,or systematic sampling number would be:

Consider the terms: information,data,and knowledge.From a statistical standpoint,list these terms in order of increasing usefulness in making decisions.

Which analytical tool is often used to separate the "vital few" from the "trivial many"?

Ratio data indicate both rank and distance from a natural zero,with ratios of two measures having meaning.

Statistics provides business functional areas with tools to make decisions under conditions of uncertainty.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The data presented below were collected on the amount of time,in hours;it takes an employee,to process an order at a local plumbing wholesaler. -Construct a frequency distribution of the data.

The 2005 mobile phone manufacturers' global market shares were as follows: Nokia 26.9%,Motorola 16.9%,Ericson 10.5%,Samsung 6.2%,Panasonic 5.5%,others (Siemens,Alcatel,Mitsubishi,Philips,NEC,and more)34.0%.Present this information in a pie chart.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Suppose you own a DVD rental store. -Give an example of a question where testing a hypothesis about a parameter would be helpful.

Numerical variables can be subdivided into two types.What are they?

The statement "The price of a Canon digital camera is likely to be lower in three months than it is now" is arrived at by the use of descriptive statistics.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Suppose you own a DVD rental store. -Give an example of a forecasting question.

As part of the graduation paperwork,seniors at a particular college were asked to indicate their post-graduation plans.Results showed that 15% planned to start graduate school right after college graduation.Is this an example of descriptive or inferential statistics?

A department of mathematical sciences has majors in four areas. If a pie chart is constructed for these data,what would be the percentage of the graph for each major?

A histogram is the best graphical tool to display qualitative data.

Of those in the sample who went partying the weekend before the final exam,what percentage of them did poorly in the exam?

Cross tables can be used for summarizing both qualitative and quantitative data.

Describing Data: Numerical

Probability

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Hypothesis Testing: Additional Topics

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

Suppose a sample size of 50 is desired and the population consists of 2,500 names in alphabetical order.The j^th,or systematic sampling number would be: