Question 1

In developing and conducting a survey,what is the purpose of the pre-test phase?

Accepted Answer

A) To make sure that the cost of developing the survey instrument is not too great 
B) To generate initial data for analysis 
C) To catch any problems with the questionnaire before it is fully administered 
D) To make sure that the respondents like the issues being addressed by the survey

Question 2

Statistical inference would be used as the primary statistical tool by a quality control manager who wishes to estimate the average weight of her company's products.

Accepted Answer

A) True 
 B)False

Question 3

Based on a survey of 400 students in a university in which 20 percent indicated that they were business majors.The university student newspaper reported that "20 percent of all the students at the university are business majors." This report is an example of

Accepted Answer

A) a sample. 
B) a population. 
C) statistical inference. 
D) descriptive statistics.

Question 4

Data collected using open-ended questions is generally easier to analyze than data collected from closed-ended questions.

Accepted Answer

A) True 
 B)False

Question 5

When the marketing manager for a large company surveys a portion of the total customers of his company,he is using a sample from the population.

Accepted Answer

A) True 
 B)False

Question 6

A grocery store is interested in determining whether its customers are satisfied with the quality of service provided.To collect the necessary data,interviewers have been hired to stand near the store's exits and to survey customers who have the time and interest to be surveyed.This type of sampling is called:

Accepted Answer

A) systematic random sampling. 
B) ratio sampling. 
C) convenience sampling. 
D) stratified sampling.

Question 7

Which of the following is an example of graphs used to describe data?

Accepted Answer

A) Histograms 
B) Bar charts 
C) Both A and B are correct. 
D) None of the above.

Question 8

A market research firm that surveys customers in a shopping mall by asking various people to respond to a short survey about a new product is performing convenience sampling.

Accepted Answer

A) True 
 B)False

Question 9

Mail questionnaires typically generate poor response rates.

Accepted Answer

A) True 
 B)False

Question 10

A tire manufacturing company is interested in obtaining data on stopping distances for each of the three main tread types made by the company.The data collection method that would be most likely used in this case would be:

Accepted Answer

A) telephone survey. 
B) written questionnaire. 
C) demographic surveying. 
D) experiments.

Question 11

Explain the difference between a stratified random sample and cluster random sample.

Accepted Answer

The answer of Explain the difference between a stratified random...

Question 12

A parameter is the boundary on the population of interest.

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

At the end of the school term,students are asked to rate the course and instructor by indicating on a scale of 1-5 how well they liked the course.The data generated from this question are examples of ordinal data.

Accepted Answer

A) True 
 B)False

Question 15

Estimation and hypothesis testing are categories of:

Accepted Answer

A) inferential statistics. 
B) descriptive statistics. 
C) numerical measurement. 
D) statistical charts.

Question 16

Discuss the differences and similarities between statistical estimation and statistical hypothesis testing.

Accepted Answer

The answer of Discuss the differences and similarities between statistical...

Question 17

A cell phone service provider has 14,000 customers.Recently,the sales department selected a random sample of 400 customer accounts and recorded the number of minutes of long distance time used during the previous billing period.The data for this variable is considered to be nominal since the values are based on sample data.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

The answer of What are the major categories of statistical...

Question 19

A consumer products company is considering introducing a new product nationally.To help make the decision,it first conduct a test market by selling the product for a few months in one city.This is an example of:

Accepted Answer

A) descriptive statistics. 
B) charts and graphs. 
C) estimation. 
D) hypothesis testing.

Question 20

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

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

In developing and conducting a survey,what is the purpose of the pre-test phase?

Statistical inference would be used as the primary statistical tool by a quality control manager who wishes to estimate the average weight of her company's products.

Based on a survey of 400 students in a university in which 20 percent indicated that they were business majors.The university student newspaper reported that "20 percent of all the students at the university are business majors." This report is an example of

Data collected using open-ended questions is generally easier to analyze than data collected from closed-ended questions.

When the marketing manager for a large company surveys a portion of the total customers of his company,he is using a sample from the population.

Which of the following is an example of graphs used to describe data?

A market research firm that surveys customers in a shopping mall by asking various people to respond to a short survey about a new product is performing convenience sampling.

Mail questionnaires typically generate poor response rates.

A tire manufacturing company is interested in obtaining data on stopping distances for each of the three main tread types made by the company.The data collection method that would be most likely used in this case would be:

Explain the difference between a stratified random sample and cluster random sample.

A parameter is the boundary on the population of interest.

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

At the end of the school term,students are asked to rate the course and instructor by indicating on a scale of 1-5 how well they liked the course.The data generated from this question are examples of ordinal data.

Estimation and hypothesis testing are categories of:

Discuss the differences and similarities between statistical estimation and statistical hypothesis testing.

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

A consumer products company is considering introducing a new product nationally.To help make the decision,it first conduct a test market by selling the product for a few months in one city.This is an example of:

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