Question 1

Which of the following statements about sample size is false?

Accepted Answer

A) There is no direct relationship between population size and the size of the
Sample required to estimate population parameters. 
B) The larger the sample variance, the larger the sample size that is required. 
C) The higher the level of confidence, the larger the sample size that is required. 
D) The larger the population, the larger the sample size that is required. 
E) All of these statements are false. 
A) There is no direct relationship between population size and the size of the
Sample required to estimate population parameters. 
B) The larger the sample variance, the larger the sample size that is required. 
C) The higher the level of confidence, the larger the sample size that is required. 
D) The larger the population, the larger the sample size that is required. 
E) All of these statements are false. D

Question 2

A sample distribution is a frequency distribution of all the elements of an individual (single)population.

Accepted Answer

A) True 
 B)False  False

Question 3

A normal distribution has a total of 6 standard deviations.

Accepted Answer

A) True 
 B)False  True

Question 4

If a researcher takes enough samples,the data will begin to approach a normal distribution.

Accepted Answer

A) True 
 B)False

Question 5

The "budget available" approach forces the researcher to explore alternative data-collection approaches and to carefully consider the value of information in relation to cost.

Accepted Answer

A) True 
 B)False

Question 6

If we were making inferences from a single sample,we would expect that there would be a ____ percent probability that the sample mean or proportion generated from our sample results would be within two standard errors of the true population mean.

Accepted Answer

A) 68.26% 
B) 99.74% 
C) 97.5% 
D) 95.44% 
E) 98.00% 
A) 68.26% 
B) 99.74% 
C) 97.5% 
D) 95.44% 
E) 98.00%

Question 7

The greater the number of subgroups to be analyzed,the smaller the necessary sample size.

Accepted Answer

A) True 
 B)False

Question 8

In a normal distribution,the mean,median,and mode are equal.

Accepted Answer

A) True 
 B)False

Question 9

The idea that a large number of sample means or proportions will approximate a normal distribution,regardless of the distribution of the population from which they were drawn,is known as:

Accepted Answer

A) sample variance 
B) population variance 
C) central limit theorem 
D) random error 
E) simple random sample 
A) sample variance 
B) population variance 
C) central limit theorem 
D) random error 
E) simple random sample

Question 10

The confidence level is the probability that a particular interval will include true population value.

Accepted Answer

A) True 
 B)False

Question 11

A range of values with which the true population value is estimated to fall is known as the point estimate.

Accepted Answer

A) True 
 B)False

Question 12

Regardless of how the target sample size is determined,the researcher is confronted with the practical problem of figuring out how many sampling units will be required to complete the assignment.

Accepted Answer

A) True 
 B)False

Question 13

Population size is the most important determinant of effective sample size.

Accepted Answer

A) True 
 B)False

Question 14

How many respondents should be in each important subgroup of a sample?

Accepted Answer

A) 10 
B) 25 
C) 50 
D) 95 
E) 100 
A) 10 
B) 25 
C) 50 
D) 95 
E) 100

Question 15

Which of the following is not a piece of required information in order to determine sample size?

Accepted Answer

A) estimated population standard deviation 
B) estimated population median 
C) acceptable level of sampling error 
D) All are necessary to determine sample size. 
E) desired level of confidence 
A) estimated population standard deviation 
B) estimated population median 
C) acceptable level of sampling error 
D) All are necessary to determine sample size. 
E) desired level of confidence

Question 16

A confidence interval always includes the true population value.

Accepted Answer

A) True 
 B)False

Question 17

When a research company routinely uses samples of 300 for their studies,they are using which type of plan to determine sample size?

Accepted Answer

A) the 50% rule 
B) budget available 
C) rule of thumb 
D) number of subgroups to be analyzed 
A) the 50% rule 
B) budget available 
C) rule of thumb 
D) number of subgroups to be analyzed

Question 18

Which of the following would increase the necessary sample size in a study?

Accepted Answer

A) smaller mean of the variables in question 
B) less need for precision 
C) need to divide sample into sub-groups 
D) larger population 
E) smaller population 
A) smaller mean of the variables in question 
B) less need for precision 
C) need to divide sample into sub-groups 
D) larger population 
E) smaller population

Question 19

When a researcher is not sure if people who responded to the survey are different from those who did not respond,this brings into question the issue of:

Accepted Answer

A) inappropriate sample size. 
B) systematic bias. 
C) nonresponse bias. 
D) refusal bias. 
A) inappropriate sample size. 
B) systematic bias. 
C) nonresponse bias. 
D) refusal bias.

Question 20

The total area under a normal curve is not equal to one,meaning all observations.

Accepted Answer

A) True 
 B)False

Which of the following statements about sample size is false?

A sample distribution is a frequency distribution of all the elements of an individual (single)population.

A normal distribution has a total of 6 standard deviations.

If a researcher takes enough samples,the data will begin to approach a normal distribution.

The "budget available" approach forces the researcher to explore alternative data-collection approaches and to carefully consider the value of information in relation to cost.

If we were making inferences from a single sample,we would expect that there would be a ____ percent probability that the sample mean or proportion generated from our sample results would be within two standard errors of the true population mean.

The greater the number of subgroups to be analyzed,the smaller the necessary sample size.

In a normal distribution,the mean,median,and mode are equal.

The idea that a large number of sample means or proportions will approximate a normal distribution,regardless of the distribution of the population from which they were drawn,is known as:

The confidence level is the probability that a particular interval will include true population value.

A range of values with which the true population value is estimated to fall is known as the point estimate.

Regardless of how the target sample size is determined,the researcher is confronted with the practical problem of figuring out how many sampling units will be required to complete the assignment.

Population size is the most important determinant of effective sample size.

How many respondents should be in each important subgroup of a sample?

Which of the following is not a piece of required information in order to determine sample size?

A confidence interval always includes the true population value.

When a research company routinely uses samples of 300 for their studies,they are using which type of plan to determine sample size?

Which of the following would increase the necessary sample size in a study?

When a researcher is not sure if people who responded to the survey are different from those who did not respond,this brings into question the issue of:

The total area under a normal curve is not equal to one,meaning all observations.

The Role of Marketing Research in Management Decision Making

The Marketing Research Industry and Research Ethics

Problem Definition and the Research Process

Secondary Data and Databases

Qualitative Research

Traditional Survey Research

Online Marketing Research-The Growth of Mobile and Social Media Research

Primary Data Collection: Observation

Primary Data Collection: Experimentation and Test Markets

The Concept of Measurement

Using Measurement Scales to Build Marketing Effectiveness

Questionnaire Design

Basic Sampling Issues

Data Processing and Fundamental Data Analysis

Statistical Testing of Differences and Relationships

Bivariate Correlation and Regression

Multivariate Data Analysis

Communicating the Research Results

Managing Marketing Research

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Exam 14: Sample Size Determination

Which of the following statements about sample size is false?

A sample distribution is a frequency distribution of all the elements of an individual (single)population.

A normal distribution has a total of 6 standard deviations.

If a researcher takes enough samples,the data will begin to approach a normal distribution.

The "budget available" approach forces the researcher to explore alternative data-collection approaches and to carefully consider the value of information in relation to cost.

If we were making inferences from a single sample,we would expect that there would be a ____ percent probability that the sample mean or proportion generated from our sample results would be within two standard errors of the true population mean.

The greater the number of subgroups to be analyzed,the smaller the necessary sample size.

In a normal distribution,the mean,median,and mode are equal.

The idea that a large number of sample means or proportions will approximate a normal distribution,regardless of the distribution of the population from which they were drawn,is known as:

The confidence level is the probability that a particular interval will include true population value.

A range of values with which the true population value is estimated to fall is known as the point estimate.

Regardless of how the target sample size is determined,the researcher is confronted with the practical problem of figuring out how many sampling units will be required to complete the assignment.

Population size is the most important determinant of effective sample size.

How many respondents should be in each important subgroup of a sample?

Which of the following is not a piece of required information in order to determine sample size?

A confidence interval always includes the true population value.

When a research company routinely uses samples of 300 for their studies,they are using which type of plan to determine sample size?

Which of the following would increase the necessary sample size in a study?

When a researcher is not sure if people who responded to the survey are different from those who did not respond,this brings into question the issue of:

The total area under a normal curve is not equal to one,meaning all observations.

The Role of Marketing Research in Management Decision Making

The Marketing Research Industry and Research Ethics

Problem Definition and the Research Process

Secondary Data and Databases

Qualitative Research

Traditional Survey Research

Online Marketing Research-The Growth of Mobile and Social Media Research

Primary Data Collection: Observation

Primary Data Collection: Experimentation and Test Markets

The Concept of Measurement

Using Measurement Scales to Build Marketing Effectiveness

Questionnaire Design

Basic Sampling Issues

Data Processing and Fundamental Data Analysis

Statistical Testing of Differences and Relationships

Bivariate Correlation and Regression

Multivariate Data Analysis

Communicating the Research Results

Managing Marketing Research

Filters