Question 1

The primary purpose of inferential statistics is to make a judgment about a population.

Accepted Answer

A) True 
 B)False

Question 2

A researcher must calculate the sample mean to calculate the confidence intervals.

Accepted Answer

A) True 
 B)False

Question 3

A frequency distribution of a sample is called a sample distribution.

Accepted Answer

A) True 
 B)False

Question 4

Suppose a population mean is assumed to be 20 and the sample standard deviation is 5.Then,a score of 15 would have a Z-value of approximately ____.

Accepted Answer

A) -7.00 
B) -1.00 
C) +1.00 
D) +5.00 
A) -7.00 
B) -1.00 
C) +1.00 
D) +5.00

Question 5

The standard deviation of the sampling distribution is called the ____________________ of the mean.

Accepted Answer

The answer of The standard deviation of the sampling distribution...

Question 6

Describe the measures of dispersion and explain why standard deviation is used most often.

Accepted Answer

there are several measures of dispersion

Question 7

Which of the following is the symbol for the sample standard deviation?

Accepted Answer

A) S 
B) µ² 
C) ơ 
D) ơ² 
A) S 
B) µ² 
C) ơ 
D) ơ²

Question 8

When a data set is summarized by counting the number of times each value for a variable occurs in the sample,this is known as a ____________________.

Accepted Answer

Frequency

Question 9

Discuss the three factors required to specify sample size.

Accepted Answer

three factors are required to specify sa

Question 10

Find the mean score of the following set of scores: 2,5,7,4,8.

Accepted Answer

A) 4.8 
B) 5.2 
C) 7.0 
D) 26.0 
A) 4.8 
B) 5.2 
C) 7.0 
D) 26.0

Question 11

Suppose the price of MP3 players in Denver range from $59 to $179.Then,the range of these prices is ____.

Accepted Answer

A) $59 
B) $120 
C) $179 
D) $238 
A) $59 
B) $120 
C) $179 
D) $238

Question 12

Which of the following is the symbol for the population standard deviation?

Accepted Answer

A) S 
B) ơ 
C) µ 
D) S² 
A) S 
B) ơ 
C) µ 
D) S²

Question 13

A common practice in marketing research is to use the 75 percent confidence interval about the mean in research studies.

Accepted Answer

A) True 
 B)False

Question 14

If between 125 and 150 units of a product have been produced each day during the past month,the range of this production is 25 units.

Accepted Answer

A) True 
 B)False

Question 15

The following formula is used to compute ____.

Accepted Answer

A) standard error of the mean 
B) standard deviation 
C) standard normal distribution 
D) variance 
A) standard error of the mean 
B) standard deviation 
C) standard normal distribution 
D) variance

Question 16

An estimate of the population mean in the form of a single value is called a(n)____________________ estimate.

Accepted Answer

The answer of An estimate of the population mean in...

Question 17

The value of Z is computed by the formula: Z = (X - µ)/ơ.

Accepted Answer

A) True 
 B)False

Question 18

The midpoint of a distribution,above which and below which half of the scores fall,is called the mode.

Accepted Answer

A) True 
 B)False

Question 19

Three factors are required to specify sample size: (1)the variance of the population;(2)the population mean;and (3)the confidence level.

Accepted Answer

A) True 
 B)False

Question 20

When a researcher wants to estimate national market share based on the results of the test market for a new product in St.Louis and Kansas City,this is an example of:

Accepted Answer

A) descriptive statistics 
B) the central limit theorem 
C) inferential statistics 
D) the standardized normal distribution 
A) descriptive statistics 
B) the central limit theorem 
C) inferential statistics 
D) the standardized normal distribution

Exam 13: Big Data Basics: Describing Samples and Populations

The primary purpose of inferential statistics is to make a judgment about a population.

A researcher must calculate the sample mean to calculate the confidence intervals.

A frequency distribution of a sample is called a sample distribution.

Suppose a population mean is assumed to be 20 and the sample standard deviation is 5.Then,a score of 15 would have a Z-value of approximately ____.

The standard deviation of the sampling distribution is called the ____________________ of the mean.

Describe the measures of dispersion and explain why standard deviation is used most often.

Which of the following is the symbol for the sample standard deviation?

When a data set is summarized by counting the number of times each value for a variable occurs in the sample,this is known as a ____________________.

Discuss the three factors required to specify sample size.

Find the mean score of the following set of scores: 2,5,7,4,8.

Suppose the price of MP3 players in Denver range from $59 to $179.Then,the range of these prices is ____.

Which of the following is the symbol for the population standard deviation?

A common practice in marketing research is to use the 75 percent confidence interval about the mean in research studies.

If between 125 and 150 units of a product have been produced each day during the past month,the range of this production is 25 units.

The following formula is used to compute ____.

An estimate of the population mean in the form of a single value is called a(n)____________________ estimate.

The value of Z is computed by the formula: Z = (X - µ)/ơ.

The midpoint of a distribution,above which and below which half of the scores fall,is called the mode.

Three factors are required to specify sample size: (1)the variance of the population;(2)the population mean;and (3)the confidence level.

When a researcher wants to estimate national market share based on the results of the test market for a new product in St.Louis and Kansas City,this is an example of:

The Role of Marketing Research

Information Systems and Knowledge Management

The Marketing Research Process

The Human Side of Marketing Research: Organizational and Ethical Issues

Qualitative Research Tools

Secondary Data Research in a Digital Age

Survey Research

Observation

Conducting Marketing Experiments

Measurement and Attitude Scaling

Questionnaire Design

Sampling Designs and Sampling Procedures

Basic Data Analysis

Testing for Differences Between Groups and for Predictive Relationships

Communicating Research Results

Beyond the Basics in Basic Data Analysis

Advanced Topics in Linear Analytics

Testing Hypotheses With Glm Procedures

Introducing Multivariate Data Analysis

Multivariate Data Analysis: Analytics With Interdependence Techniques

Primer on Structural Equations Modeling

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