Question 1

If the desired level of confidence to estimate a mean is increased from 90% (with z = 1.60)to 95%,the sample size is increased by a factor of ____,all else equal.

Accepted Answer

A) 2.50 
B) 4.65 
C) Has no effect on sample size. 
D) 1.56 
E) 2.00 
A) 2.50 
B) 4.65 
C) Has no effect on sample size. 
D) 1.56 
E) 2.00

Question 2

In a study of the U.S.labor force to determine its attitudes and opinions,a research company interviews 5,000 persons on a street corner in Manhattan,NY.In order to get more accurate results,they decide to increase the sample size to 10,000.Which of the following would be true?

Accepted Answer

A) Increase the sample size will increase the representativeness of the sample. 
B) Increase the sample size would still not increase the representative of the sample. 
C) Since a convenient sample was used,sample representativeness is impossible. 
D) Both b and c. 
E) None of the above is correct. 
A) Increase the sample size will increase the representativeness of the sample. 
B) Increase the sample size would still not increase the representative of the sample. 
C) Since a convenient sample was used,sample representativeness is impossible. 
D) Both b and c. 
E) None of the above is correct.

Question 3

Suppose that the income of the population of the city of Seattle is normally distributed and varies approximately from 0 to 6 million;what is the estimated standard deviation?

Accepted Answer

A) Insufficient information to estimate 
B) 2 million 
C) 3 million 
D) square root of 6 million 
E) 1 million 
A) Insufficient information to estimate 
B) 2 million 
C) 3 million 
D) square root of 6 million 
E) 1 million

If the desired level of confidence to estimate a mean is increased from 90% (with z = 1.60)to 95%,the sample size is increased by a factor of ____,all else equal.

In a study of the U.S.labor force to determine its attitudes and opinions,a research company interviews 5,000 persons on a street corner in Manhattan,NY.In order to get more accurate results,they decide to increase the sample size to 10,000.Which of the following would be true?

Suppose that the income of the population of the city of Seattle is normally distributed and varies approximately from 0 to 6 million;what is the estimated standard deviation?

The Role of Marketing Research

Gathering Marketing Intelligence: The Systems Approach

Gathering Marketing Intelligence: The Project Approach

Problem Formulation

Types of Research Design and Exploratory Research

Descriptive and Causal Research Designs

Secondary Data

Standardized Marketing Information Services

Collecting Primary Data

Collecting Information by Communication

Collecting Information by Observation

Asking Good Questions: Measurement Basics

Measuring Attitudes and Other Variables

Designing the Questionnaire or Observation Form

Developing the Sampling Plan

Collecting the Data: Nonsampling Errors and Response Rate Calculation

Data Analysis: Preliminary Steps

Data Analysis: Analyzing Individual Variables and Basics of Hypothesis Testing

Data Analysis: Analyzing Multiple Variables Simultaneously

The Research Report

Filters

Exam 16: Determining Sample Size

If the desired level of confidence to estimate a mean is increased from 90% (with z = 1.60)to 95%,the sample size is increased by a factor of ____,all else equal.

In a study of the U.S.labor force to determine its attitudes and opinions,a research company interviews 5,000 persons on a street corner in Manhattan,NY.In order to get more accurate results,they decide to increase the sample size to 10,000.Which of the following would be true?

Suppose that the income of the population of the city of Seattle is normally distributed and varies approximately from 0 to 6 million;what is the estimated standard deviation?

The Role of Marketing Research

Gathering Marketing Intelligence: The Systems Approach

Gathering Marketing Intelligence: The Project Approach

Problem Formulation

Types of Research Design and Exploratory Research

Descriptive and Causal Research Designs

Secondary Data

Standardized Marketing Information Services

Collecting Primary Data

Collecting Information by Communication

Collecting Information by Observation

Asking Good Questions: Measurement Basics

Measuring Attitudes and Other Variables

Designing the Questionnaire or Observation Form

Developing the Sampling Plan

Collecting the Data: Nonsampling Errors and Response Rate Calculation

Data Analysis: Preliminary Steps

Data Analysis: Analyzing Individual Variables and Basics of Hypothesis Testing

Data Analysis: Analyzing Multiple Variables Simultaneously

The Research Report

Filters