Question 1

Sample size can be computed by using the formula for the standard error.

Accepted Answer

A) True 
 B)False  True

Question 2

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

Accepted Answer

A)   confidence interval
B)   precision level
C)   sampling distribution
D)   standard deviation
E)   standard range A

Question 3

In cases where the population standard deviation is unknown,it is estimated by the sample standard deviation.In this case,the standard error of the mean becomes:

Accepted Answer

A)   mean / proportion
B)   standard variate / standard deviate
C)   the z-value
D)   p (1 - p) 
E)   sample standard deviation / square root of sample size E

Question 4

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 facing...

Question 5

The cost of increasing the sample size in social media research goes up markedly.

Accepted Answer

A) True 
 B)False

Question 6

According to the text,the sampling distribution of the means is a normal distribution.

Accepted Answer

A) True 
 B)False

Question 7

When estimating a population parameter by using a sample statistic,the precision level is the desired size of the estimating interval.

Accepted Answer

A) True 
 B)False

Question 8

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 9

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 10

It is not feasible to have large sample sizes when conducting marketing research in social media.

Accepted Answer

A) True 
 B)False

Question 11

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 12

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

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A)   low incidence rate; high incidence rate
B)   low random rate; high random rate
C)   high incidence rate; low incidence rate
D)   high random rate; low random rate
E)   low diversity; high diversity

Question 14

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 15

Which of the following measures of central tendency for a normal distribution is not identical?

Accepted Answer

A)   mean
B)   median
C)   mode
D)   All are identical for a normal distribution.
E)   none are identical

Question 16

The percentage of qualified respondents who complete the interview is called the ________.

Accepted Answer

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

Question 17

All of the following are true EXCEPT:

Accepted Answer

A)   Sample size is one of the major costs in a research project.
B)   Sample size is directly proportional to the variance of the variable.
C)   Estimates of the population variance are based on small pilot studies, related research and judgment of the researcher.
D)   The researcher should disclose to the client unexpected differences between expected and actual sample standard deviations.
E)   Inflating population variance estimates does not lead to inflating the sample size.

Question 18

The ________ is used as an estimate of the population parameter.

Accepted Answer

A)   random sampling error
B)   sample statistic
C)   confidence level
D)   precision level
E)   standard deviate

Question 19

The process of generalizing the sample results to the population results is called statistical inference.

Accepted Answer

A) True 
 B)False

Question 20

The percentage of qualified respondents who complete the interview is called the incidence rate.

Accepted Answer

A) True 
 B)False

Exam 13: Sampling: Final and Initial Sample Size Determination

Sample size can be computed by using the formula for the standard error.

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

In cases where the population standard deviation is unknown,it is estimated by the sample standard deviation.In this case,the standard error of the mean becomes:

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

The cost of increasing the sample size in social media research goes up markedly.

According to the text,the sampling distribution of the means is a normal distribution.

When estimating a population parameter by using a sample statistic,the precision level is the desired size of the estimating interval.

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.

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.

It is not feasible to have large sample sizes when conducting marketing research in social media.

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

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

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

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?

Which of the following measures of central tendency for a normal distribution is not identical?

The percentage of qualified respondents who complete the interview is called the ________.

All of the following are true EXCEPT:

The ________ is used as an estimate of the population parameter.

The process of generalizing the sample results to the population results is called statistical inference.

The percentage of qualified respondents who complete the interview is called the incidence rate.