The population described in the problem.

Question

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Answer 1

Question

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

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Solve the following LP problem using the Extreme Point Theorem: Subject to: Maximize Z-6+4y 2+y≤8 2x + y ≤10 2,y20 Solve it using the graphical method. Guidelines for preparation for the teacher's questions: Understand the basics of Linear Programming (LP) 1. Know how to formulate an LP model. 2. Be able to identify decision variables, objective functions, and constraints. Be comfortable with graphical solutions 3. Know how to plot feasible regions and find extreme points. 4. Understand how constraints affect the solution space. Understand the Extreme Point Theorem 5. Know why solutions always occur at extreme points. 6. Be able to explain how optimization changes with different constraints. Think about real-world implications 7. Consider how removing or modifying constraints affects the solution. 8. Be prepared to explain why LP problems are used in business, economics, and operations research.

ged the variance for group 1) Different groups of male stalk-eyed flies were raised on different diets: a high nutrient corn diet vs. a low nutrient cotton wool diet. Investigators wanted to see if diet quality influenced eye-stalk length. They obtained the following data: d Diet Sample Mean Eye-stalk Length Variance in Eye-stalk d size, n (mm) Length (mm²) Corn (group 1) 21 2.05 0.0558 Cotton (group 2) 24 1.54 0.0812 =205-1.54-05T a) Construct a 95% confidence interval for the difference in mean eye-stalk length between the two diets (e.g., use group 1 - group 2).

Answer 2

Question

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

Answer 6

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.

Statistics Concept Introduction

Introduction:

Population:

Population consists of the complete subjects that are included in the study for making inferences.

Sample:

Sample is the subset of the subjects chosen from the whole population.

Answer 7

Chapter 8, Problem 8.17CYS

To determine

To find: The population described in the problem.

Answer 8

Expert Solution & Answer

Answer to Problem 8.17CYS

Option (a): All the customers who have purchased something in the last year.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct answer:

A survey was conducted by an online store about the customers who have purchased in the last year. Out of 1,000 customers 696 have said that they are very satisfied with the stores’ website.

In the survey all the customers who have purchased last year are included in the study for making inference that represents the population.

Reason for the incorrect answers:

Option (b): The 1,000 customers whom the online store contacted do not represent the population as the population should not include only 1,000 customers, it should involve all the customers.

Option (c): The 696 customers who were satisfied represent the sample because these customers are forming the subset of the population of all the customers.

Conclusion:

Thus, all the customers who have purchased something in the last year represent the population in this survey.