Question 1

Which of the following is a source of coverage error?

Accepted Answer

A)  an incomplete sampling frame 
B)  refusals to cooperate 
C)  unreturned questionnaires 
D)  item nonresponse 
E)  random selection processes 
A)  an incomplete sampling frame 
B)  refusals to cooperate 
C)  unreturned questionnaires 
D)  item nonresponse 
E)  random selection processes

Question 2

Drawing a simple random sample requires the random selection of cases from a list of the population.

Accepted Answer

A) True 
 B)False

Question 3

Consider the variable cumulative grade-point average (GPA). Suppose you select a simple random sample of 100 students from the population of all currently enrolled students at your college. A sampling distribution would consist of the distribution of

Accepted Answer

A)  GPAs for all currently enrolled students. 
B)  average GPAs for all possible samples of 100 students. 
C)  GPAs for the simple random sample of 100 students. 
D)  average GPAs for two or more subsamples, such as male and female students. 
A)  GPAs for all currently enrolled students. 
B)  average GPAs for all possible samples of 100 students. 
C)  GPAs for the simple random sample of 100 students. 
D)  average GPAs for two or more subsamples, such as male and female students.

Question 4

Given equivalent costs, multistage cluster sampling is superior to simple random sampling.

Accepted Answer

A) True 
 B)False

Question 5

To use stratified random sampling, the sampling frame must contain information on the stratifying variable.

Accepted Answer

A) True 
 B)False

Question 6

A sampling distribution describes how a sample statistic is likely to vary about the population value it estimates.

Accepted Answer

A) True 
 B)False

Question 7

A researcher draws a random sample of 100 full-time city employees and, based on their self-reported salaries, calculates an average annual salary of $56,000. According to city records, however, the average annual earnings of all full-time city employees is $51,000. Which of the following conclusions can you draw from these data?

Accepted Answer

A)  The mean of the sampling distribution for samples of 100 is $51,000. 
B)  The estimated margin of error for all samples of 100 is $5,000. 
C)  The sample estimate is based on a biased sample of city employees. 
D)  The sample is too small to provide an accurate estimate of the average earnings of all employees. 
A)  The mean of the sampling distribution for samples of 100 is $51,000. 
B)  The estimated margin of error for all samples of 100 is $5,000. 
C)  The sample estimate is based on a biased sample of city employees. 
D)  The sample is too small to provide an accurate estimate of the average earnings of all employees.

Question 8

Which of the following describes a sampling distribution?

Accepted Answer

A)  distribution of individual responses in a single sample 
B)  distribution of individual responses in a population 
C)  probability distribution of individual responses in a single sample 
D)  probability distribution of a sample statistic 
A)  distribution of individual responses in a single sample 
B)  distribution of individual responses in a population 
C)  probability distribution of individual responses in a single sample 
D)  probability distribution of a sample statistic

Question 9

A stratified random sample reduces sampling error to the extent that variation within each stratum is __________; the sampling error of a cluster sample is reduced to the extent that variation within clusters is __________compared with the variation across clusters.

Accepted Answer

A)  small; small 
B)  small; large 
C)  large; small 
D)  large; large 
A)  small; small 
B)  small; large 
C)  large; small 
D)  large; large

Which of the following is a source of coverage error?

Drawing a simple random sample requires the random selection of cases from a list of the population.

Consider the variable cumulative grade-point average (GPA). Suppose you select a simple random sample of 100 students from the population of all currently enrolled students at your college. A sampling distribution would consist of the distribution of

Given equivalent costs, multistage cluster sampling is superior to simple random sampling.

To use stratified random sampling, the sampling frame must contain information on the stratifying variable.

A sampling distribution describes how a sample statistic is likely to vary about the population value it estimates.

Which of the following describes a sampling distribution?

A stratified random sample reduces sampling error to the extent that variation within each stratum is ; the sampling error of a cluster sample is reduced to the extent that variation within clusters is compared with the variation across clusters.

Introduction

The Nature of Science

Research Ethics

Elements of Research Design

Measurement

Experimentation

Experimental Designs

Survey Research

Survey Instrumentation

Field Research

Research Using Available Data

Multiple Methods

Data Processing and Elementary Data Analysis

Multivariate Analysis

Writing Research Reports

Filters

Exam 6: Sampling

Which of the following is a source of coverage error?

Drawing a simple random sample requires the random selection of cases from a list of the population.

Consider the variable cumulative grade-point average (GPA). Suppose you select a simple random sample of 100 students from the population of all currently enrolled students at your college. A sampling distribution would consist of the distribution of

Given equivalent costs, multistage cluster sampling is superior to simple random sampling.

To use stratified random sampling, the sampling frame must contain information on the stratifying variable.

A sampling distribution describes how a sample statistic is likely to vary about the population value it estimates.

Which of the following describes a sampling distribution?

A stratified random sample reduces sampling error to the extent that variation within each stratum is __________; the sampling error of a cluster sample is reduced to the extent that variation within clusters is __________compared with the variation across clusters.

Introduction

The Nature of Science

Research Ethics

Elements of Research Design

Measurement

Experimentation

Experimental Designs

Survey Research

Survey Instrumentation

Field Research

Research Using Available Data

Multiple Methods

Data Processing and Elementary Data Analysis

Multivariate Analysis

Writing Research Reports

Filters

A stratified random sample reduces sampling error to the extent that variation within each stratum is ; the sampling error of a cluster sample is reduced to the extent that variation within clusters is compared with the variation across clusters.