Question 1

What are the major categories of statistical tools that will be covered in this course?

Accepted Answer

Business statistics can be divided into

Question 2

Cross-sectional data is a set of data values observed at successive points in time.

Accepted Answer

A) True 
 B)False

Question 3

The primary purpose of performing a pre-test when developing a telephone or mail survey is to make sure that the respondents can understand the questions and are able to provide meaningful responses.

Accepted Answer

A) True 
 B)False

Question 4

Explain what an experimental design is.

Accepted Answer

When an experiment is conducted with an

Question 5

A variable that has all the properties of an interval variable,but also has a true zero,is a ratio level variable.

Accepted Answer

A) True 
 B)False

Question 6

In conducting a personal interview,what problem can result if the interviewer is allowed to arbitrarily decide who should be interviewed?

Accepted Answer

A) Nonresponses 
B) Missing data 
C) Bias 
D) Poor response rate 
A) Nonresponses 
B) Missing data 
C) Bias 
D) Poor response rate

Question 7

A parameter is the boundary on the population of interest.

Accepted Answer

A) True 
 B)False

Question 8

An experiment is a process that generates data as its outcome.

Accepted Answer

A) True 
 B)False

Question 9

Weekly stock closing prices for IBM would be classified as which of the following?

Accepted Answer

A) Cross-sectional data 
B) Time-series data 
C) Nominal data 
D) Ordinal data 
A) Cross-sectional data 
B) Time-series data 
C) Nominal data 
D) Ordinal data

Question 10

When customers return a product to a store and the store asks the customer to indicate the reason that the merchandise was returned,the resulting data are quantitative since multiple people will be providing the data.

Accepted Answer

A) True 
 B)False

Question 11

If an analyst computes statistics from a sample,the sample is by definition a statistical sample.

Accepted Answer

A) True 
 B)False

Question 12

What is the underlying common element of all statistical sampling techniques?

Accepted Answer

The basis for all statistical sampling t

Question 13

Another term for the arithmetic average is the mean.

Accepted Answer

A) True 
 B)False

Question 14

It is possible for a nonstatistical sample to yield statistics that have values closer to the corresponding parameter than will a statistical sample.

Accepted Answer

A) True 
 B)False

Question 15

One of the most common statistical sampling techniques is convenience sampling.

Accepted Answer

A) True 
 B)False

Question 16

When the United States conducts a census that counts all people in the country,this is an example of using a sample.

Accepted Answer

A) True 
 B)False

Question 17

The human resources department at a major high tech company recently conducted an employee satisfaction survey of 100 of its 3000 employees.Data were collected on such variables as age,gender,marital status,current salary,level of overall satisfaction on a scale from 1 to 5,number of years with the company,and job title.Which of the variables listed are considered to be ratio level data?

Accepted Answer

A) Age and years with the company 
B) Gender and marital status 
C) Job title 
D) None of the variables is ratio level. 
A) Age and years with the company 
B) Gender and marital status 
C) Job title 
D) None of the variables is ratio level.

Question 18

A light bulb manufacturer wants to advertise the average life of its light bulbs so it tests a subset of light bulbs.This is an example of inferential statistics.

Accepted Answer

A) True 
 B)False

Question 19

When a survey uses the responses strongly disagree,disagree,neutral,agree,strongly agree,this is an example of:

Accepted Answer

A) nominal data. 
B) ordinal data. 
C) interval data. 
D) ratio data. 
A) nominal data. 
B) ordinal data. 
C) interval data. 
D) ratio data.

Question 20

A sample is selected from a population in cases where selecting data from the entire population is either very difficult or very expensive.

Accepted Answer

A) True 
 B)False

What are the major categories of statistical tools that will be covered in this course?

Cross-sectional data is a set of data values observed at successive points in time.

The primary purpose of performing a pre-test when developing a telephone or mail survey is to make sure that the respondents can understand the questions and are able to provide meaningful responses.

Explain what an experimental design is.

A variable that has all the properties of an interval variable,but also has a true zero,is a ratio level variable.

In conducting a personal interview,what problem can result if the interviewer is allowed to arbitrarily decide who should be interviewed?

A parameter is the boundary on the population of interest.

An experiment is a process that generates data as its outcome.

Weekly stock closing prices for IBM would be classified as which of the following?

When customers return a product to a store and the store asks the customer to indicate the reason that the merchandise was returned,the resulting data are quantitative since multiple people will be providing the data.

If an analyst computes statistics from a sample,the sample is by definition a statistical sample.

What is the underlying common element of all statistical sampling techniques?

Another term for the arithmetic average is the mean.

It is possible for a nonstatistical sample to yield statistics that have values closer to the corresponding parameter than will a statistical sample.

One of the most common statistical sampling techniques is convenience sampling.

When the United States conducts a census that counts all people in the country,this is an example of using a sample.

A light bulb manufacturer wants to advertise the average life of its light bulbs so it tests a subset of light bulbs.This is an example of inferential statistics.

When a survey uses the responses strongly disagree,disagree,neutral,agree,strongly agree,this is an example of:

A sample is selected from a population in cases where selecting data from the entire population is either very difficult or very expensive.

Graphs,Charts and Tablesdescribing Your Data

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Goodness-Of-Fit Tests and Contingency Analysis

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introduction to Quality and Statistical Process Control

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Exam 1: The Where,Why,and How of Data Collection

What are the major categories of statistical tools that will be covered in this course?

Cross-sectional data is a set of data values observed at successive points in time.

The primary purpose of performing a pre-test when developing a telephone or mail survey is to make sure that the respondents can understand the questions and are able to provide meaningful responses.

Explain what an experimental design is.

A variable that has all the properties of an interval variable,but also has a true zero,is a ratio level variable.

In conducting a personal interview,what problem can result if the interviewer is allowed to arbitrarily decide who should be interviewed?

A parameter is the boundary on the population of interest.

An experiment is a process that generates data as its outcome.

Weekly stock closing prices for IBM would be classified as which of the following?

When customers return a product to a store and the store asks the customer to indicate the reason that the merchandise was returned,the resulting data are quantitative since multiple people will be providing the data.

If an analyst computes statistics from a sample,the sample is by definition a statistical sample.

What is the underlying common element of all statistical sampling techniques?

Another term for the arithmetic average is the mean.

It is possible for a nonstatistical sample to yield statistics that have values closer to the corresponding parameter than will a statistical sample.

One of the most common statistical sampling techniques is convenience sampling.

When the United States conducts a census that counts all people in the country,this is an example of using a sample.

A light bulb manufacturer wants to advertise the average life of its light bulbs so it tests a subset of light bulbs.This is an example of inferential statistics.

When a survey uses the responses strongly disagree,disagree,neutral,agree,strongly agree,this is an example of:

A sample is selected from a population in cases where selecting data from the entire population is either very difficult or very expensive.

Graphs,Charts and Tablesdescribing Your Data

Describing Data Using Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Introduction to Continuous Probability Distributions

Introduction to Sampling Distributions

Estimating Single Population Parameters

Introduction to Hypothesis Testing

Estimation and Hypothesis Testing for Two Population Parameters

Hypothesis Tests and Estimation for Population Variances

Analysis of Variance

Goodness-Of-Fit Tests and Contingency Analysis

Introduction to Linear Regression and Correlation Analysis

Multiple Regression Analysis and Model Building

Analyzing and Forecasting Time-Series Data

Introduction to Nonparametric Statistics

Introduction to Quality and Statistical Process Control

Filters