Question 1

The dean of a college of arts and sciences with six departments wants to estimate the student-hours lost per month due to illness of professors.Describe a sampling plan that would be suitable for estimating the college-wide loss and for comparing departments.

Accepted Answer

The answer of The dean of a college of arts...

Question 2

Which of the following questionnaire designs requires the respondent to pick from only two choices?

Accepted Answer

A)  dichotomous questions 
B)  multiple choice questions 
C)  open-ended questions 
D)  demographic questions

Question 3

Which of the following is a major weakness of a nonprobability sample?

Accepted Answer

A)  Not every element has a known chance of being included in the sample. 
B)  It is convenient for the sample taker. 
C)  It allows the selection of members,which are not typical. 
D)  It is used in small exploratory studies. 
E)  It is cost efficient.

Question 4

Which of the following statements describe secondary internal data?

Accepted Answer

A)  A manufacturer of semiconductors uses available company sales and inventory valuation records to prepare an inventory turnover ratio for each month. 
B)  A mail order company conducts a telephone survey among recent purchasers. 
C)  A presidential candidate commissions a political survey organization to establish the percent of persons favoring her candidacy. 
D)  A recent graduate of mortuary school samples the death rate statistics for counties in her state in hopes of finding a good location to start a mortuary. 
E)  Consumers Union purchases 25 brands of lawnmowers and tests them for various attributes.

Question 5

In the simple random sample,each person or element has the same chance of being included in the sample.

Accepted Answer

A) True 
 B)False

Question 6

The quota sample is an example of nonprobability sampling that is similar to the stratified probability sample,except that members of the various strata are not chosen through the use of a probability sampling technique.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following sampling plans use random methods of selections?

Accepted Answer

A)  Simple random sampling 
B)  Stratified sampling 
C)  Cluster sampling 
D)  Systematic Sampling 
E)  All of these

Question 8

There are two key variables in an experiment: the independent variable (or treatment)and the dependent variable (or measurement).

Accepted Answer

A) True 
 B)False

Question 9

Sampling methods can be categorized as ____________________ or ____________________ sampling.

Accepted Answer

The answer of Sampling methods can be categorized as ____________________...

Question 10

When is a sample a better choice than a census?

Accepted Answer

A)  When the population is changing over time. 
B)  When taking the U.S.Census of the population. 
C)  When some sampling error can be tolerated. 
D)  When time is an important factor. 
E)  Each of these is a reason for taking a sample rather than a census.

Question 11

A wallboard manufacturer is concerned with meeting industry quality standards for its product.Inspecting each sheet produced would necessitate many inspectors and add about 50% more to the cost of the wallboard.Sampling per shift would only increase the cost by 3 to 4 percent and yet be capable of detecting any sub-quality wallboard.Which type of probability sampling would you recommend the company to use?

Accepted Answer

The answer of A wallboard manufacturer is concerned with meeting...

Question 12

A census can be viewed as a "sample" that includes the entire population.

Accepted Answer

A) True 
 B)False

Question 13

A pharmaceutical company interested in measuring how often physicians prescribe a certain drug has selected a simple random sample from each of two groups: M.D.(medical doctors)and D.O (osteopathic doctors).What is this type of sampling called?

Accepted Answer

A)  Simple random sampling 
B)  Cluster sampling 
C)  Stratified sampling 
D)  Purposive sampling 
E)  Quota sampling

Question 14

Comment on the appropriateness of the question,"Have you ever broken the law and endangered the lives of others by speeding and tailgating?

Accepted Answer

The answer of Comment on the appropriateness of the question,"Have...

Question 15

In practice,most studies involve relatively large populations for which taking a sample can provide satisfactory results much more quickly and at considerably lower cost than a census.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following statements is not correct?

Accepted Answer

A)  Internal secondary data are those that have been generated by your own firm or organization. 
B)  External secondary data are those that have been generated by someone outside the firm or organization,often for another purpose. 
C)  Internal secondary data have traditionally existed in the form of accounting or financial information. 
D)  All of these statements are correct. 
E)  None of these statements is correct.

Question 17

Nonsampling errors can be reduced by increasing the size of a sample.

Accepted Answer

A) True 
 B)False

Question 18

In a(n)____________________ sample,we randomly select a starting point between 1 and k,then sample every kth element from the population.

Accepted Answer

The answer of In a(n)____________________ sample,we randomly select a starting...

Question 19

In practice,a sample can be more accurate than a census.

Accepted Answer

A) True 
 B)False

Question 20

Exploratory research can be of a qualitative nature.

Accepted Answer

A) True 
 B)False

Exam 4: Data Collection and Sampling Methods

The dean of a college of arts and sciences with six departments wants to estimate the student-hours lost per month due to illness of professors.Describe a sampling plan that would be suitable for estimating the college-wide loss and for comparing departments.

Which of the following questionnaire designs requires the respondent to pick from only two choices?

Which of the following is a major weakness of a nonprobability sample?

Which of the following statements describe secondary internal data?

In the simple random sample,each person or element has the same chance of being included in the sample.

The quota sample is an example of nonprobability sampling that is similar to the stratified probability sample,except that members of the various strata are not chosen through the use of a probability sampling technique.

Which of the following sampling plans use random methods of selections?

There are two key variables in an experiment: the independent variable (or treatment)and the dependent variable (or measurement).

Sampling methods can be categorized as or sampling.

When is a sample a better choice than a census?

A census can be viewed as a "sample" that includes the entire population.

A pharmaceutical company interested in measuring how often physicians prescribe a certain drug has selected a simple random sample from each of two groups: M.D.(medical doctors) and D.O (osteopathic doctors) .What is this type of sampling called?

Comment on the appropriateness of the question,"Have you ever broken the law and endangered the lives of others by speeding and tailgating?

In practice,most studies involve relatively large populations for which taking a sample can provide satisfactory results much more quickly and at considerably lower cost than a census.

Which of the following statements is not correct?

Nonsampling errors can be reduced by increasing the size of a sample.

In a(n)____________________ sample,we randomly select a starting point between 1 and k,then sample every kth element from the population.

In practice,a sample can be more accurate than a census.

Exploratory research can be of a qualitative nature.