Question 1

According to the text, a parameter denotes the true value that would be obtained if a census, rather than a sample, were undertaken.

Accepted Answer

A) True 
 B)False

Question 2

A ________ is a basis for classical statistical inference that is bell-shaped and symmetrical in appearance.

Accepted Answer

A)  normal distribution 
B)  standard deviation 
C)  variance 
D)  confidence interval 
E)  classic symmetry

Question 3

According to the text, as the sample size increases the sampling distribution of the mean becomes a(n) ________.

Accepted Answer

A)  unsymmetrical distribution 
B)  normal distribution 
C)  inverted distribution 
D)  random distribution 
E)  chi-square distribution

Question 4

The range into which the true population parameter will fall, assuming a given level of confidence, is called the sampling distribution.

Accepted Answer

A) True 
 B)False

Question 5

Statistical calculation of sample size requires determining the z value.

Accepted Answer

A) True 
 B)False

Question 6

A normal distribution is a basis for classical statistical inference that is bell-shaped and symmetrical in appearance.

Accepted Answer

A) True 
 B)False

Question 7

According to the text, the confidence level is the probability that a confidence interval will include the population parameter.

Accepted Answer

A) True 
 B)False

Question 8

The distribution of the values of a sample statistic computed for each possible sample that could be drawn from the target population under a specified sampling plan is called the sampling distribution.

Accepted Answer

A) True 
 B)False

Question 9

Generally, large samples are desirable in social media research.

Accepted Answer

A) True 
 B)False

Question 10

The two factors that affect the task of interviewing a much larger number of respondents than originally anticipated to achieve the desired net sample are ________ and ________.

Accepted Answer

A)  standard rate; incidence rate 
B)  incidence rate; completion rate 
C)  completion rate; random rate 
D)  random rate; standard rate 
E)  tolerance rate; error rate

Question 11

Confidence intervals around sample means or proportions are estimated using the ________.

Accepted Answer

A)  standard error formula 
B)  variance formula 
C)  standard deviation formula 
D)  confidence interval formula 
E)  reflexive value equation

Question 12

Response rate = number of completed interviews / number in the population.

Accepted Answer

A) True 
 B)False

Question 13

When studying a characteristic with a high incident rate, the researcher will have to initially contact many more people than if the characteristic has a low incident rate.

Accepted Answer

A) True 
 B)False

Question 14

As the number of qualifying criteria for a research study increases, the ________ will fall.

Accepted Answer

A)  completion rate 
B)  standard rate 
C)  random rate 
D)  incidence rate 
E)  activation rate

Question 15

If the incidence rate is 0.25, then on average how many potential respondents must be approached in order to obtain one qualified respondent?

Accepted Answer

A)  .25 
B)  .75 
C)  1.25 
D)  3 
E)  4

Question 16

The rate of occurrence of persons eligible to participate in the study expressed as a percentage is called the ________.

Accepted Answer

A)  standard rate 
B)  random rate 
C)  completion rate 
D)  incidence rate 
E)  diversity rate

Question 17

Which of the following factors DOES NOT need to be specified when using a statistical package to determine the appropriate sample size for a research study?

Accepted Answer

A)  precision level 
B)  confidence level 
C)  population standard deviation 
D)  population demographics 
E)  C and D

Question 18

In a short essay, discuss the concept of statistical inference.

Accepted Answer

The answer of In a short essay, discuss the concept...

Question 19

When computing confidence intervals, maximum variation occurs when a proportion of interest is 0.5.

Accepted Answer

A) True 
 B)False

Question 20

In a short essay, discuss sampling issues facing researchers involved in international marketing research.

Accepted Answer

The answer of In a short essay, discuss sampling issues...

Exam 13: Sampling: Final and Initial Sample Size Determination

According to the text, a parameter denotes the true value that would be obtained if a census, rather than a sample, were undertaken.

A ________ is a basis for classical statistical inference that is bell-shaped and symmetrical in appearance.

According to the text, as the sample size increases the sampling distribution of the mean becomes a(n) ________.

The range into which the true population parameter will fall, assuming a given level of confidence, is called the sampling distribution.

Statistical calculation of sample size requires determining the z value.

A normal distribution is a basis for classical statistical inference that is bell-shaped and symmetrical in appearance.

According to the text, the confidence level is the probability that a confidence interval will include the population parameter.

The distribution of the values of a sample statistic computed for each possible sample that could be drawn from the target population under a specified sampling plan is called the sampling distribution.

Generally, large samples are desirable in social media research.

The two factors that affect the task of interviewing a much larger number of respondents than originally anticipated to achieve the desired net sample are and .

Confidence intervals around sample means or proportions are estimated using the ________.

Response rate = number of completed interviews / number in the population.

When studying a characteristic with a high incident rate, the researcher will have to initially contact many more people than if the characteristic has a low incident rate.

As the number of qualifying criteria for a research study increases, the ________ will fall.

If the incidence rate is 0.25, then on average how many potential respondents must be approached in order to obtain one qualified respondent?

The rate of occurrence of persons eligible to participate in the study expressed as a percentage is called the ________.

Which of the following factors DOES NOT need to be specified when using a statistical package to determine the appropriate sample size for a research study?

In a short essay, discuss the concept of statistical inference.

When computing confidence intervals, maximum variation occurs when a proportion of interest is 0.5.

In a short essay, discuss sampling issues facing researchers involved in international marketing research.