# JHR's MA223 page

## MA223 Statistics

MTRF 7 G222
John Rickert, Associate Professor of Mathematics
Office: G-215A, Crapo Hall
Phone: (812) 877-8473
Campus mail: CM 141
e-mail: john.rickert@rose-hulman.edu
My schedule
policy       grade weights       Notes       Greek alphabet
Statistics paper due: Thursday, May 16.

### Homework

Today's homework (for tomorrow's class)

For Tuesday, March 5: Sec 1.1 #2,5,8,9.Turn in these exercises on Thursday.
For Thursday, March 7: Turn in The Section 1.1 exercises.
Section 1.2 #8,9,12.Turn in these exercises on Friday
For Friday, March 8: Turn in The Section 1.2 exercises.
Section 1.3 #1bd,4,7,13,16.
For Monday March 11: Turn in Friday's exercises (Sec1.3 #1bd,4,7,13,15).
Section 1.3 #5,6,11.
For Tuesday, March 12: Turn in Monday's exercises (Sec. 1.3 #5,6,11).
Section 2.1 #1,2,6,10,14,17,20. Turn in these exercises on Thursday.
For Thursday, March 14: Turn in the Section 2.1 exercises.
Section 2.3 #1,3,10,12. Turn in these exercises on Friday.
For Friday, March 15: Turn in the Section 2.3 exercises from Thursday (1,3,10,12).
Section 2.3 #2,15,21,30,34. Turn in these exercises on Monday.
For Monday March 18: Turn in the Secttion 2.3 Exercises from Friday.
Section 2.4 #2,3,5,9,10,12. Turn in these exercises on Tuesday.
For Tuesday, March 19: Turn in The Section 2.4 exercises from Monday. (#2,3,5,9,10,12)
Section 2.4 #15,18,19,22,23,25. Turn in these exercises on Thursday.
For Thursday, March 21: Turn in the Section 2.4 exercises from Tuesday (#15,18,19,22,23,25)
Section 2.5 #1,8,9,14,16.

Friday, March 22: No class meeting. I will be at the Indiana MAA meeting.

Monday, March 25: We will have a quiz covering material from Chapter 2.
Turn in the Section 2.5 exercises.
Section 4.1 #1,3,4,6. Turn in these exercises on Tuesday.
For Tuesday, March 26: Turn in the Section 4.1 exercises.
Section 4.2 #1,2. Turn in these exercises on Friday.
Thursday, March 28: The average score on Exam #1 was 86.5. Equivalent scores are A 90-99, B 80-89, C 70-79.
For Friday, March 29: Turn in Section 4.2 #1,2.
Section 4.2 #7,10,13,19,21.

For Monday, April 8: Turn in Section 4.2 #7,10,13,19,21.
Section 4.5 #1,5.
For Tuesday, April 9: Turn in Section 4.5 #1,5.
Section 4.5 #6,9,13,18,21,25.
For Thursday, April 11: Turn in Section 4.5 #6,9,13,18,21,25.
Section 4.7 #1,2,9,10.
For Friday, April 12: Turn in the Section 4.7 homework.
Work Section 4.10 #1,2.

For Monday, April 15: Turn in the Section 4.10 homework.
Work Section 4.11 #1,3,8,9,12,18.
For Tuesday, April 16: Turn in the Section 4.11 homework.
Bring your computers so that you can use Minitab on some data.
For Thursday, April 18: Work on the confidence intervals worksheet passed out Thursday.

Friday, April 19: No class meeting due to the Rose-Hulman Undergraduate Mathematics Conference.
For Monday, April 22: Turn in the worksheet exercsies from Tuesday, April 16.
Section 5.3 #3,6,8,12,15.
For Tuesday, April 23: Turn in the Section 5.3 exercises.
Section 5.4 #1,5,8,14.
Thursday, April 25: Turn in your project proposal.
Turn in the Section 5.4 exercises.
Section 5.6 #1,3,8,11.
Friday, April 26: The average scoer on Exam #2 was 88.7. Equivalent grades are A: 90-97 B 80-89 C 70-79 D 60-69.

For Monday, April 29: Turn in the Section 5.6 exercises.
Section 5.7 #1,5,6,8.
For Tuesday, April 30: Turn in the Section 5.7 exercises.
Section 6.1 #1,5,6,7,14.
For Thursday, May 2: Turn in the Section 6.1 Exercises.
Section 6.2 #1,3,6,17.
For Friday, May 3: Turn in the Section 6.2 Exercises (1,3,6,17).
Section 6.4 #1,3,5,12; Section 6.2 #8.

For Monday, May 6: Turn in Friday's exercises.
Section 6.5 #1,3,10; Section 6.7 #1,6,9.
For Tuesday, May 7: Turn in the Section 6.5 and 6.7 exercises.
Section 6.8 #1,5,8,12; Section 6.12 #1.
For Thursday, May 9: Turn in the Section 6.8 and 6.12 exercises.
Section 7.1 #1,6,7,10.
For Friday, May 10: Turn in the Section 7.1 exercises.
Section 7.2 #1,6,11,16.
Come with questions about confidence intervals, I>t-tests, and correlation.

Monday, May 13: Exam #3 average was 119.5/140. Equivalent grades are A 126-140 B 112-125 C 98-111 D 84-97 F <84.
For Tuesday, May 14: Section 7.3 #1a-d, 3,14,15.
Thursday, May 16: Projects are due.
Turn in the Section 7.3 exercises.
Section 7.4 #1,3; Section 9.1 #1,10.
Friday, May 17: Turn in the Section 7.4 and 9.1 homework exercises.
Section 5.9 #1,3,6.
Come with review questions about MA223.

### Notes

Today's notes
```- Login as Localmgr
- Make sure you are connected to the RHIT network
- Click Start->Run and type \\rose-hulman.edu\dfs\Software\Course
- Follow the instructions provided there
```

### Course Policy

Material added since the beginning of class will be in purple
This class will have three in-class exams - most likely during the 4th, 7th, and 9th weeks.
Note: I don't set grades using a 93/86/77/70 "straight scale" system. I plan to challenge you to excel. This means that the exam averages will generally be lower than what you are used to.
Answers should be explained. The correct answer will be worth 1 point. The rest of the credit comes from correctly explaining how the answer is found. The words "used Maple" and "used Minitab" are not an explanation and will result in a loss of 1 point. When you use Maple, or Minitab, you must explain what you've done mathematically, e.g., "Set f'(x)=0, solve for x".
The final exam will be given during finals week. If you are making arrangements for travel home, you should make sure that they will not conflict with the final exam schedule. If your parents will be purchasing airline tickets for you, you should contact them and remind them not to schedule you on a flight that might cause you fail a class. There will be two parts to the final exam.
The weights for the grade are given below.
There may be two types of quizzes given in class: announced and unannounced.

A stapler is probably a good investment for most of you. Multi-page homeworks should be stapled together, not mutilated.
Place your name and Campus Mailbox number in the upper right-hand corner of your homework. Homework is due at the beginning of class on the day that it is due. You should turn in your homework in a pile on the desk at the front of the classroom. Homework may be turned in later but will be penalized based on just how late it is - typically
1 point off for turned in late during the class,
5% off for being turned in late the same day,
10% off per day. (weekends count for two days) i.e. 10 days later, it's too late to get a makeup homework turned in.
When writing up homework, you should circle (or otherwise clearly indicate) your answers.
It's good to work together, but you should write/type your own homework. Simply copying another person's work or Maple file is not acceptable.
The grader and I reserve the right to return as unacceptable any homework that is inadequately prepared. (full of scratch work, problems out of order, submitted on crumpled or fringed paper, irrelevant information about other topics is written on the paper )
If you have any questions while I'm not around, you may e-mail me at rickert@rose-hulman.edu and I will reply as soon as I can.

You should come to class prepared. This means that I expect you to have done the homework, brought your book to class and, when necessary launched Minitab at the beginning of class.
If you have a cell phone, please make sure that it does not ring audibly during class. Phone calls should, in general, not be answered during class.

• If you don't understand something, ASK
• If I'm going too fast, STOP ME. I enjoy mathematics. When I get on a roll, I tend to keep going.
• SHOW YOUR WORK. The correct answer will only be worth 1 point. I want to verify that you understand the process.
• If you are having problems understanding the material, see me or go to the learning center.
The following errors are taboo. If you make them, do not expect any credit on the problem
• A probability must lie in the interval [0,1].
• A variance cannot be negative.

### A summary of the grade weights

There will be three in-class exams worth 15% each
The final exam will be worth 30%
There will be a project paper worth 15%
Quizzes and homework will be worth 10%
Extra credit that is earned will be added on to your grade after the curve has been determined.

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