Math 321: Applied Statistical Methods

Spring 2009, L. Peterson

Announcements

The final exam for our section of this course will take place on Monday, May 11, 2009, from 1:00 P.M. to 3:00 P.M. in the usual classroom. Bring your textbook to the exam. You may use calculators, notes, and books during the exam. You may not use laptop computers, and you may not share notes or books during the exam.

If you go to the bookstores, it could happen that the textbook is out of stock. If this should happen, then to obtain the book, you may need to talk to someone from the bookstore and ask him or her to order the book for you.

Assignments

Section 1.2: 3, 7, 10, 11, 18
Due January 23, 2009
Do the computer lab on "Basic Dotplots and Histograms." Use the handouts "Computer Lab Guidelines" and "Lab 1: Basic Dotplots and Histograms." You may obtain these handouts directly from me or from the handouts section of my Web site.
Due: February 2, 2009
Section 1.3: 19, 23, 24, 26, 27
Due January 30, 2009
Note: Answer to 19(d) is 4.2 minutes, not 5.8 minutes.
Section 1.4 (part I): 30, 31, 32, 33
Due February 4, 2009
Section 1.4 (part II): 37, 38, 39, 41(a)
Due February 6, 2009
Note: The answer to 37(b) is 0.6892.
Note: The answer to 37(c) is 40.0 ksi.
Section 1.6: 51, 52, 56, 57
Due February 6, 2009
Note on Example 1.22: A sample of 100 is selected, not a sample of 25.
Section 2.1: 1, 2, 8, 9, 13, 14(a)
Due February 9, 2009
Notes: In Problem 9(c), the answer to the first question is 0.667.
Section 2.2: 15, 18, 23, 24, 27, 28
Due February 13, 2009
Section 2.3: 32, 35
Due February 23, 2009
Section 2.4: 44, 45, 46, 47
Due February 27, 2009
Notes: Make hand-drawn quantile plots.
Hint for Problem 47: Get the z-quantiles from the example that we did (will do) in class.
Suggested review problems for Exam I:
Chapter 1: 60, 61, 65, 70, 73
Chapter 2: 11, 22, 53ab, 57, 65
Do not hand in.
I suggest that you also study all previous homework problems, whether they be even- or odd-numbered, and whether I graded them or not.
Note: The correct answers to Problem 65 in Chapter 2 are as follows:
(a) 0.9330
(b) Binomial, 0.6086
Section 3.1: 3, 7, 8
Due March 2, 2009
Note: You may use MINITAB or other computer software for this assignment.
Section 3.2: 9, 10bc, 11, 12
Due March 2, 2009
Do Computer Lab 2: Correlation Coefficients and Scatter Plots. See the handout for this lab exercise.
Due March 9, 2009
Section 3.3: 18abd, 19, 24abcd, 25bc
Due March 6, 2009
Note 1: You may use pocket calculators, but do not use laptops or personal computers.
Note 2: Exercise 4 is in Section 3.1
Note 3: In the box at the bottom of page 121, the entire fraction, SSResid/(n-2), should be under a big radical.
Note 4: Skip the subsection on "Plotting the Residuals."
Section 3.6: 40, 41, 42
Due March 13, 2009
Note: We will skip sections 3.4 and 3.5.
Section 5.1: 1, 2, 3, 6
Due April 1, 2009
Note: The answer to Problem 3(b) is "the whole sample space."
Note: This assignment was originally due on March 25, 2009. I have extended the due date to Wednesday, April 1, 2009.
Section 5.2: 9, 10, 11
Due April 3, 2009, 2009
Note: The answer to Problem 11 is 0.05.
Note: The original due date for this assignment was March 27. I have extended the due date to Friday, April 3, 2009.
Section 5.3: 12, 15a, 18, 19, 20, 21ab
Due April 3, 2009
Note 1: Problem 15a should read as follows: "Of the digits received at the end of the channel, what proportion are 1's?"
Note 2: The answer to Problem 15a is 0.598.
Note 3: The original due date for this assignment was March 30. I have extended the due date to Friday, April 3, 2009.
Do Computer Lab 3: Basic Linear Regression. See the handout for this lab exercise.
Due April 3, 2009
Note: Before printing the Session Window, you may have to click on the Session Window.
Note: The original due date for this assignment was April 1. I have extended the due date to Friday, April 3, 2009.
Section 5.4: 26, 27, 30, 31, 34, 37
Due April 6, 2009
Note: Skip joint densities and double integrals. Skip Example 5.12.
Note: The original due date for this assignment was April 3. I have extended the due date to Monday, April 6, 2009.
Section 5.5: 43, 44abcd, 45
Due April 8, 2009
Section 5.6: 46, 47, 49, 50, 54, 55
Due April 22, 2009
The original due date for this assignment was April 15. I have extended the due date to April 22, 2009.
I have prepared a special handout with some suggested review problems for Exam II. I will not collect these review problems. I will pass out copies of the handout in class. The handout is also available in the handouts section of this Web site.
Section 7.1: 2, 3, 4
Due April 27, 2009
Note: In 3c and 4c, plot n along the horizontal axis.
Section 7.2: 8, 9, 13, 14, 18, 19
Due April 29, 2009
Note: The correct answer to problem 19 is 61.8.
Section 7.3: 21, 22, 23, 28, 29, 30, 31
Due May 4, 2009

Most recent assignments:
Section 7.4: 35, 38, 40, 41, 43, 44
Due May 6, 2009
Note: Skip tolerance intervals. Skip problems 43c and 44b.
Section 8.1: 5, 7, 9, 11
Due date: None. Do not hand in this assignment.
Special review problems for the final exam:
Section 5.6: #52
Section 7.3: #33
Section 7.4: #39, #42ab
Section 8.1: #10
Note 1: I will not collect these review problems.
Note 2: The answers to Section 7.3, #33 are 5.88 and "yes."
Note 3: In problems 42a and 42b from Section 7.4, assume that the population is normal.
Note 4: The final exam will be comprehensive with an emphasis on Sections 5.5 through 8.1. You should also review all past homework problems and previous review problems.
---- End of current assignments for Applied Statistical Methods ----

Links

Lawrence J. Peterson home page

Information on tutoring

Department of Mathematics home page

University of North Dakota home page

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Contact Person: Larry Peterson
E-mail: lawrence.peterson@und.nodak.edu
Phone: (701) 777-4609
Date of most recent update: May 6, 2009
University of North Dakota home page