Stat 2000: Tips for Web Assign HW 02
Published: Mon, 01/17/11
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Throughout the term I will send you all sorts of tips to help you study and learn the course. You probably already have done so, but, if not, I strongly recommend you purchase my Basic Stats 2 Study Book. You will find it a great resource to learn the course. I pride myself in explaining things in clear, everyday language. I also provided numerous examples of all the key concepts with step-by-step solutions. You can order my book at UMSU Digital Copy Centre at University Centre at UM campus. They make the book to order so please allow at least one business day. The book is split into two volumes and each volume costs $45 + tax.
Tips for Web Assign HW 02
When working with Web Assign, always enter the answer to one specific box and then click "Submit Answer" to confirm that is correct before you move on to another box. Do not enter several answers all at once in several boxes before you click "Submit Answer". You risk being marked wrong due to some typo or something.
For some strange reason, JMP 8 occasionally computes wrong answers even if you have copied and pasted your data correctly. I suggest that, if it is feasible, type the given data into your calculator (in Stat mode as shown in Appendix D of my book), and have your calculator compute the sample mean. Compare that answer with JMP's answer for the sample mean. If they are the same, everything is fine. If they are not the same, close JMP 8 and restart it, recopy and paste the data, and check again. Sometimes you have to do this 2 or 3 times before JMP finally works. If it is not feasible to use your calculator to compute the sample mean, have JMP do the question 2 or 3 times, being sure to restart JMP and recopy the data each time, and confirm that JMP gives you the same answer each time before risking entering the results into Web Assign.
If you are taking the course by distance/online (Section D01) click here to see your tips for HW 02.
There are no tips for HW 02 (Sections A01 to A05) as of yet. I will send out a revised copy of this email once HW 02 is posted.
Study Lesson 3 in my book before you start this assignment.
Questions 3 to 6 should go quite smoothly for a person who has studied Lesson 3 in my book.
To be able to understand questions 7 and 8, you will need to read my "Errors in Hypothesis Testing Revisited" section in Lesson 6 of my study book (this is only in the 2010-2011 edition, blue cover). You may also need to skim through some of the earlier questions in Lesson 6 to get a grasp of how to compute Discrete Probabilities and Binomial Probabilities. I think mastery of these topics is not important at this time, you will get an opportunity to learn this lesson more thoroughly later on in this course.