Question 1

If a sample is representative,it

Accepted Answer

A) is stratified. 
B) is restricted to the calculation of parameters only. 
C) reproduces the characteristics of the population. 
D) resembles the sampling distribution. 
A) is stratified. 
B) is restricted to the calculation of parameters only. 
C) reproduces the characteristics of the population. 
D) resembles the sampling distribution. C

Question 2

Cluster sampling often involves selecting

Accepted Answer

A) geographical areas. 
B) systematic stratified clusters. 
C) older respondents only. 
D) cases alphabetically. 
A) geographical areas. 
B) systematic stratified clusters. 
C) older respondents only. 
D) cases alphabetically. A

Question 3

The General Social Survey (GSS)is an example of a

Accepted Answer

A) sample. 
B) sampling distribution. 
C) population. 
D) all of the above 
A) sample. 
B) sampling distribution. 
C) population. 
D) all of the above A

Question 4

Unless a sample is ____,it cannot be used to make accurate generalizations to a population.

Accepted Answer

A) very large 
B) non-probability 
C) representative 
D) stratified 
A) very large 
B) non-probability 
C) representative 
D) stratified

Question 5

Results from cluster samples

Accepted Answer

A) are always representative of the population. 
B) are never representative of the population. 
C) should be treated with more caution than results from simple random samples. 
D) should never be used to generalize to a population. 
A) are always representative of the population. 
B) are never representative of the population. 
C) should be treated with more caution than results from simple random samples. 
D) should never be used to generalize to a population.

Question 6

When a list of the population does not exist,the probability sampling technique most commonly used is

Accepted Answer

A) simple random. 
B) stratified. 
C) systematiC. 
D) cluster. 
A) simple random. 
B) stratified. 
C) systematiC. 
D) cluster.

Question 7

The fundamental principle of probability sampling is that a sample selected by ____ is very likely to be ____.

Accepted Answer

A) EPSEM,representative 
B) stratification,large 
C) telephone polls,cheap 
D) clusters,stratified 
A) EPSEM,representative 
B) stratification,large 
C) telephone polls,cheap 
D) clusters,stratified

Question 8

Unlike the sample and population distributions,the sampling distribution is

Accepted Answer

A) empirical. 
B) theoretical. 
C) random. 
D) EPSEM. 
A) empirical. 
B) theoretical. 
C) random. 
D) EPSEM.

Question 9

Statistics are to parameters as

Accepted Answer

A) samples are to populations. 
B) populations are to samples. 
C) medians are to standard deviations. 
D) percentages are to proportions. 
A) samples are to populations. 
B) populations are to samples. 
C) medians are to standard deviations. 
D) percentages are to proportions.

Question 10

In comparing a sampling distribution with a population distribution,

Accepted Answer

A) there will always be more variance in the sampling distribution. 
B) there will always be more variance in the population distribution. 
C) as the size of the sample increases the two distributions will become identical. 
D) the two distributions will always be the same. 
A) there will always be more variance in the sampling distribution. 
B) there will always be more variance in the population distribution. 
C) as the size of the sample increases the two distributions will become identical. 
D) the two distributions will always be the same.

Question 11

Compared to probability samples,non-probability samples

Accepted Answer

A) are usually cheaper to assemble. 
B) are always much larger. 
C) are usually more expensive to assemble. 
D) allow for generalizations to populations. 
A) are usually cheaper to assemble. 
B) are always much larger. 
C) are usually more expensive to assemble. 
D) allow for generalizations to populations.

Question 12

In a sampling distribution of sample means,most of the sample means will

Accepted Answer

A) cluster around the true population value. 
B) be below the population mean in value. 
C) be above the population mean in value. 
D) not follow any particular pattern. 
A) cluster around the true population value. 
B) be below the population mean in value. 
C) be above the population mean in value. 
D) not follow any particular pattern.

Question 13

The shape of the sampling distribution of sample means can be assumed to be normal when N is

Accepted Answer

A) a large percentage of the population. 
B) any number as long as you know the value of the population mean. 
C) 100 or more. 
D) at least twice the value of the population standard deviation. 
A) a large percentage of the population. 
B) any number as long as you know the value of the population mean. 
C) 100 or more. 
D) at least twice the value of the population standard deviation.

Question 14

The standard deviation of the sampling distribution is represented by which of the following symbol(s)?

Accepted Answer

A) s / N 
B) (s)(N) 
C)  $\sqrt { \sigma / N }$ 
D)  $\sigma / \sqrt { N }$ 
A) s / N 
B) (s)(N) 
C)  $\sqrt { \sigma / N }$ 
D)  $\sigma / \sqrt { N }$

Question 15

Explain and briefly distinguish between simple random sampling,systematic random sampling,stratified random sampling,and cluster sampling.Which of these techniques is designed to guarantee representativeness? How?

Accepted Answer

Simple random sampling is a technique wh

Question 16

The Central Limit Theorem states that as sample size becomes large,

Accepted Answer

A) the sampling distribution of sample means approaches normality. 
B) the sampling distribution of sample means becomes larger. 
C) the population distribution becomes normal. 
D) the sample distribution becomes normal. 
A) the sampling distribution of sample means approaches normality. 
B) the sampling distribution of sample means becomes larger. 
C) the population distribution becomes normal. 
D) the sample distribution becomes normal.

Question 17

An EPSEM sampling technique that often uses geographical areas is called

Accepted Answer

A) cluster sampling. 
B) simple random sampling. 
C) proportional sampling. 
D) non-scientific sampling. 
A) cluster sampling. 
B) simple random sampling. 
C) proportional sampling. 
D) non-scientific sampling.

Question 18

A researcher wanted to learn something about the religious affiliation of the students at the local college (e.g. ,what percent were Catholic,Jewish,etc.).This information was not available from the Registrar and the researcher was working with a very limited budget.Therefore,she used the principle pf EPSEM to select a group of 200 students,called each of them at home,and conducted a brief interview.She was able to develop many conclusions based on this information.For example,she found that 50 of the 200 respondents were Catholic and concluded that about 25% of students at the college would claim the same religious affiliation.
Identify each of the following elements in this research scenario and explain their importance:
A)Population
B)Sample
C)Parameter
D)Statistic
E)EPSEM
F)Representative

Accepted Answer

In the research scenario described, the

Question 19

I surveyed 48 randomly-selected residents of the apartment complex where I live to determine their voting habits.I can only use this information to generalize to all the residents if

Accepted Answer

A) there is evidence of a normal population distribution. 
B) the 48 residents all have the same voting habits. 
C) the 48 residents are equally divided in their voting habits. 
D) the sample distribution is not normal in shape. 
A) there is evidence of a normal population distribution. 
B) the 48 residents all have the same voting habits. 
C) the 48 residents are equally divided in their voting habits. 
D) the sample distribution is not normal in shape.

Question 20

A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500.In this example,the 45 interviewees were the ____ and the ____ was the population.

Accepted Answer

A) sample,student body 
B) parameters,freshman class 
C) statistics,parameters 
D) sample,freshman class 
A) sample,student body 
B) parameters,freshman class 
C) statistics,parameters 
D) sample,freshman class

If a sample is representative,it

Cluster sampling often involves selecting

The General Social Survey (GSS)is an example of a

Unless a sample is ____,it cannot be used to make accurate generalizations to a population.

Results from cluster samples

When a list of the population does not exist,the probability sampling technique most commonly used is

The fundamental principle of probability sampling is that a sample selected by is very likely to be .

Unlike the sample and population distributions,the sampling distribution is

Statistics are to parameters as

In comparing a sampling distribution with a population distribution,

Compared to probability samples,non-probability samples

In a sampling distribution of sample means,most of the sample means will

The shape of the sampling distribution of sample means can be assumed to be normal when N is

The standard deviation of the sampling distribution is represented by which of the following symbol(s)?

Explain and briefly distinguish between simple random sampling,systematic random sampling,stratified random sampling,and cluster sampling.Which of these techniques is designed to guarantee representativeness? How?

The Central Limit Theorem states that as sample size becomes large,

An EPSEM sampling technique that often uses geographical areas is called

I surveyed 48 randomly-selected residents of the apartment complex where I live to determine their voting habits.I can only use this information to generalize to all the residents if

A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500.In this example,the 45 interviewees were the and the was the population.

Introduction

Basic Descriptive Statistics: Percentages, Ratios and Rates, Tables, Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Estimation Procedures

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv: Chi Square

Bivariate Association: Introduction and Basic Concepts

Association Between Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

Exam 6: Introduction to Inferential Statistics: Sampling and the Sampling Distribution

If a sample is representative,it

Cluster sampling often involves selecting

The General Social Survey (GSS)is an example of a

Unless a sample is ____,it cannot be used to make accurate generalizations to a population.

Results from cluster samples

When a list of the population does not exist,the probability sampling technique most commonly used is

The fundamental principle of probability sampling is that a sample selected by ____ is very likely to be ____.

Unlike the sample and population distributions,the sampling distribution is

Statistics are to parameters as

In comparing a sampling distribution with a population distribution,

Compared to probability samples,non-probability samples

In a sampling distribution of sample means,most of the sample means will

The shape of the sampling distribution of sample means can be assumed to be normal when N is

The standard deviation of the sampling distribution is represented by which of the following symbol(s)?

Explain and briefly distinguish between simple random sampling,systematic random sampling,stratified random sampling,and cluster sampling.Which of these techniques is designed to guarantee representativeness? How?

The Central Limit Theorem states that as sample size becomes large,

An EPSEM sampling technique that often uses geographical areas is called

I surveyed 48 randomly-selected residents of the apartment complex where I live to determine their voting habits.I can only use this information to generalize to all the residents if

A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500.In this example,the 45 interviewees were the ____ and the ____ was the population.

Introduction

Basic Descriptive Statistics: Percentages, Ratios and Rates, Tables, Charts and Graphs

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Estimation Procedures

Hypothesis Testing I: the One-Sample Case

Hypothesis Testing II: the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv: Chi Square

Bivariate Association: Introduction and Basic Concepts

Association Between Variables Measured at the Nominal Level

Association Between Variables Measured at the Ordinal Level

Association Between Variables Measured at the Interval-Ratio Level

Elaborating Bivariate Tables

Partial Correlation and Multiple Regression and Correlation

Filters

The fundamental principle of probability sampling is that a sample selected by is very likely to be .

A researcher questioned 45 randomly-selected members of the freshman class about their experiences drinking alcohol and used these responses to estimate the drinking behavior of the entire freshman class of 1500.In this example,the 45 interviewees were the and the was the population.