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Do Homework – Tawanda J…

Tawanda Johnson

11/4/15 1:49 PM

Homework: Homework Chapter 9a

Save

Score: 0 of 2 pts

8 of 21 (17 complete)

HW Score: 70.87%, 16.3 of 23 pts

9.2.43

Question Help

Determine the critical value(s) for a one-mean z-test. Draw a graph that illustrates your answer.

A left-tailed test with a = 0.07.

The critical value(s) is (are)

(Round to two decimal places as needed. Use a comma to separate answers as needed.)

Enter your answer in the answer box and then click Check Answer

1 part remaining

Clear All

Check Answer

Introduction:

As technology continues to advance, various educational platforms have been developed to enhance learning. Mathxl.com, Blackboard Learn, Study pool, and Assignments are among the popular platforms that offer academic resources and assignments. This article will discuss some of the assignments provided on these platforms and highlight how they can assist students with their studies.

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How do you draw a graph that illustrates the answer of critical value(s) for a one-mean z-test?

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Description:

In this particular case, we will focus on Tawanda Johnson’s homework as posted on the Mathxl platform. The assignment is drawn from Chapter 9a, and the student is expected to determine the critical value(s) for a one-mean z-test. Additionally, they are required to draw a graph that illustrates the answer to the left-tailed test and a= 0.07. The current score for the assignment is 70.87%, with 8 of 21 questions complete. This means that there is room for improvement on this assignment. From this example, students can have a glimpse of what to expect on the Mathxl platform and the type of assignments they can handle.

Objectives:

– To understand how to determine the critical value for a one-mean z-test

– To learn how to graphically represent the critical value for a one-mean z-test

– To comprehend the significance of a left-tailed test with a = 0.07 in determining critical value(s)

Learning Outcomes:

Upon completion of this homework assignment, students should be able to:

– Calculate the correct critical value(s) for a one-mean z-test

– Draw a graph which accurately represents the critical value(s) for a one-mean z-test

– Explain the significance of a left-tailed test with a = 0.07 in determining critical value(s)

Solution 1:

Problem: Determine the critical value(s) for a one-mean z-test.

Method: The critical values can be found using the z-table.

Solution: For a left-tailed test with a = 0.07, the critical value for the test is -1.54 (rounded to two decimal places). This value is found in the z-table corresponding to an area of 0.07 in the left tail of the distribution.

Graph: The graph of the distribution would show the critical value of -1.54 on the left tail of the curve. The null hypothesis would be rejected if the calculated z-value is less than -1.54.

Solution 2:

Problem: Determine the critical value(s) for a one-mean z-test.

Method: The critical values can be calculated using the formula: critical value = ± zα/2, where α is the level of significance (0.07 in this case), and zα/2 is the z-value that corresponds to the area of α/2 in the tails of the standard normal distribution.

Solution: For a left-tailed test with a = 0.07, α/2 = 0.035. Finding the corresponding z-value in the z-table gives us z0.035 = -1.54. Therefore, the critical value for the test is -1.54 (rounded to two decimal places).

Graph: The graph of the distribution would show the critical value of -1.54 on the left tail of the curve. The null hypothesis would be rejected if the calculated z-value is less than -1.54.

Suggested Resources/Books:

1. “Statistics for Managers Using Microsoft Excel (8th Edition)” by David M. Levine, David F. Stephan, Kathryn A. Szabat

2. “Introductory Statistics” by Neil A. Weiss

3. “Elementary Statistics: A Step by Step Approach” by Allan G. Bluman

4. “Business Statistics: For Contemporary Decision Making” by Ken Black

5. “Understanding Basic Statistics” by Charles Henry Brase, Corrinne Pellillo Brase

Similar Asked Questions:

1. What is the formula to find the critical value for a one-mean z-test?

2. What are the steps to draw a graph for a one-mean z-test?

3. How do you determine if a one-mean z-test is left-tailed or right-tailed?

4. What is the significance level of a one-mean z-test?

5. What are the assumptions made in a one-mean z-test?….0 AT&T

1:49 PM

16%O

mathxl.com

Blackboard Learn

Tax Forfeited Land Search

Studypool Inc.

Assignments

Do Homework – Tawanda J…

Tawanda Johnson

11/4/15 1:49 PM

Homework: Homework Chapter 9a

Save

Score: 0 of 2 pts

8 of 21 (17 complete)

HW Score: 70.87%, 16.3 of 23 pts

9.2.43

Question Help

Determine the critical value(s) for a one-mean z-test. Draw a graph that illustrates your answer.

A left-tailed test with a = 0.07.

The critical value(s) is (are)

(Round to two decimal places as needed. Use a comma to separate answers as needed.)

Enter your answer in the answer box and then click Check Answer

1 part remaining

Clear All

Check Answer

Introduction:

As technology continues to advance, various educational platforms have been developed to enhance learning. Mathxl.com, Blackboard Learn, Study pool, and Assignments are among the popular platforms that offer academic resources and assignments. This article will discuss some of the assignments provided on these platforms and highlight how they can assist students with their studies.

Description:

In this particular case, we will focus on Tawanda Johnson’s homework as posted on the Mathxl platform. The assignment is drawn from Chapter 9a, and the student is expected to determine the critical value(s) for a one-mean z-test. Additionally, they are required to draw a graph that illustrates the answer to the left-tailed test and a= 0.07. The current score for the assignment is 70.87%, with 8 of 21 questions complete. This means that there is room for improvement on this assignment. From this example, students can have a glimpse of what to expect on the Mathxl platform and the type of assignments they can handle.

Objectives:

– To understand how to determine the critical value for a one-mean z-test

– To learn how to graphically represent the critical value for a one-mean z-test

– To comprehend the significance of a left-tailed test with a = 0.07 in determining critical value(s)

Learning Outcomes:

Upon completion of this homework assignment, students should be able to:

– Calculate the correct critical value(s) for a one-mean z-test

– Draw a graph which accurately represents the critical value(s) for a one-mean z-test

– Explain the significance of a left-tailed test with a = 0.07 in determining critical value(s)

Solution 1:

Problem: Determine the critical value(s) for a one-mean z-test.

Method: The critical values can be found using the z-table.

Solution: For a left-tailed test with a = 0.07, the critical value for the test is -1.54 (rounded to two decimal places). This value is found in the z-table corresponding to an area of 0.07 in the left tail of the distribution.

Graph: The graph of the distribution would show the critical value of -1.54 on the left tail of the curve. The null hypothesis would be rejected if the calculated z-value is less than -1.54.

Solution 2:

Problem: Determine the critical value(s) for a one-mean z-test.

Method: The critical values can be calculated using the formula: critical value = ± zα/2, where α is the level of significance (0.07 in this case), and zα/2 is the z-value that corresponds to the area of α/2 in the tails of the standard normal distribution.

Solution: For a left-tailed test with a = 0.07, α/2 = 0.035. Finding the corresponding z-value in the z-table gives us z0.035 = -1.54. Therefore, the critical value for the test is -1.54 (rounded to two decimal places).

Graph: The graph of the distribution would show the critical value of -1.54 on the left tail of the curve. The null hypothesis would be rejected if the calculated z-value is less than -1.54.

Suggested Resources/Books:

1. “Statistics for Managers Using Microsoft Excel (8th Edition)” by David M. Levine, David F. Stephan, Kathryn A. Szabat

2. “Introductory Statistics” by Neil A. Weiss

3. “Elementary Statistics: A Step by Step Approach” by Allan G. Bluman

4. “Business Statistics: For Contemporary Decision Making” by Ken Black

5. “Understanding Basic Statistics” by Charles Henry Brase, Corrinne Pellillo Brase

Similar Asked Questions:

1. What is the formula to find the critical value for a one-mean z-test?

2. What are the steps to draw a graph for a one-mean z-test?

3. How do you determine if a one-mean z-test is left-tailed or right-tailed?

4. What is the significance level of a one-mean z-test?

5. What are the assumptions made in a one-mean z-test?

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