If you have not done so and you want to at this point, then read the Session 15 notes. Click here to see the notes or close this window and click to see the notes.
When you finish this lesson, you will complete Mathzone requirement and the Discussion Requirement requirement below.
At the end of this session you will be able to
- Quickly review the following pages of your textbook pertaining to the z-score and the Central Limit Theorem: page 142 of Section 3-3, from page 333 through page 335 of Section 6-3, and pages 357 - 360 of Section 7-1.
- Review the steps for the traditional method of hypothesis testing on page 411.
- In your textbook, study Section 8-2 on pages 413 through the top of page 418. Practice all examples without looking at the solutions in the book. Then compare with the textbook solution to insure you understood.
- If you have not done so, read the Session 15 notes for using the z-test to test means of large samples. You can close this window and click to see the notes.
- Practice on pages 422-423 of Section 8-2 practicing 1, 3, 5, 7, and 11. Make sure you decide if you are rejecting the null hypothesis and make sure you summarize your results.
If you want more help, go to MathZone and complete the eProfessor, the video lecture, and practical exercises for the z-test in Section 8-2.
In this course we are using (Groups) instead of the regular (Discussions) board, as you learned in Session 1, for posting solutions to your problems.
Close this window.
Click on the (Groups) button at the left, click on your group, scroll down to Group Tools and click on "Group Discussion Board", and then click on the "Solutions" discussion forum.
Click on the "mean z-test (Session 15)" thread and post your solution to one of the problems listed below. Select a problem another student has not yet answered. In your posting, give a complete solution and/ or explanation of how you obtained your answer. In the subject line of your posting, give the page and problem number.
You are expected to locate errors in any of the other postings. If you are the first to see the error, then you are to help your classmate correct his/her posting. To maximize your points, reply to other students and reply to the replies. Class participation and helping others is part of this course. Therefore, you who consistently are quick to help your classmates correct errors will receive extra credit for class participation.
Practice on pages 422-423 of Section 8-2 practicing 2, 4, 6, 8 ,10, 11, 12, or 13. Make sure you decide if you are rejecting the null hypothesis and make sure you summarize your results.