Announcements

July 27, 2018 (5:39 AM)
I put a link to two addendums to HW 6 on the homework web page. *** I submitted the final course grades earlier. Everyone got a grade in the A or B range (with one A+ and one B-, and the others falling in between).
July 25, 2018 (3:43 AM)
I put a link to the answers for HW 12 on the homework web page. I also put a link to the answers for Quiz 12 and Quiz 13 on the quiz web page.
July 20, 2018 (5:30 AM)
I put a link to the answers for HW 11 on the homework web page. I also put a link to the answers for Quiz 11 on the quiz web page. (Everyone made a perfect score on the quiz!)
July 19, 2018 (6:12 AM)
I put a link to a noncredit addendum to HW 12 on the homework web page. (There is nothing you need to turn in from this addendum, but I think some of you may find it interesting to be led through a deeper exploration of the classification problem considered in HW 12.)
July 18, 2018 (3:13 AM)
I put a link to the answers for HW 10 on the homework web page. I also put a link to the answers for Quiz 10 on the quiz web page. (As usual, the class as a whole did well on the homework; the average score is about 13.923 (out of 15 points possible). But several people messed up part 3(k). Some gave the results based on using hp as a single predictor, instead of using hp, disp, and wt as three predictors. Others gave the estimated MSPE based on cross-validation, instead of an estimate obtained from the test sample.)
July 13, 2018 (3:57 AM)
I put a link to the answers for HW 9 on the homework web page. I also put a link to the answers for Quiz 9 on the quiz web page.
July 12, 2018 (5:14 AM)
I put a link to HW 12 on the homework web page. (Most of the material on which it is based won't be covered until next week.) HW 12 is the final homework assignment, and the total number of points for all tweleve assignments is 160 "regular" points, plus 10 extra credit points possible. According to this web page, at the end of the summer session, I'll compare the total number of points you earn to 90% of the total number of "regular" HW points to obtain your overall homework score. So, if altogether you earn at least 0.9(160) = 144 homework points (whether they be "regular" points or extra credit points), I'll treat things as though you have a perfect homework average.
July 11, 2018 (5:37 AM)
I put a link to the answers for HW 8 on the homework web page. I also put a link to the answers for Quiz 8 on the quiz web page.
July 10, 2018 (1:09 AM)
I posted descriptions of the 11th, 12th, and 13th quizzes on the quiz web page. *** I also updated the web page pertaining to the final exam to give a fairly detailed description of the exam.
July 7, 2018 (10:17 PM)
I put a link to HW 11 on the homework web page. (Some of the material on which it is based won't be covered until Thur., 7/12.)
July 6, 2018 (6:35 AM)
I put a link to the answers for HW 7 on the homework web page. I also put a link to the answers for Quiz 7 on the quiz web page. *** We'll spend most of the class time next week on Ch. 8. In addition to the class notes, I'll also cover some of the material linked to from this web page.
July 5, 2018 (7:23 AM)
I put a link to HW 10 on the homework web page.
June 29, 2018 (1:44 AM)
I put a link to the answers for HW 6 on the homework web page. I also put a link to the answers for Quiz 6 on the quiz web page.
June 28, 2018 (4:18 AM)
I put links to HW 8 and HW 9 on the homework web page.
June 27, 2018 (1:50 AM)
I put a link to the answers for HW 5 on the homework web page. I also put a link to the answers for Quiz 5 on the quiz web page. *** Reminder: I suspect that most of you can make good use of a calculator for the quiz you'll be given on Thursday.
June 26, 2018 (12:44 AM)
I put a link to HW 7 on the homework web page.
June 23, 2018 (10:28 PM)
I put a link to the answers for HW 4 on the homework web page. There were 15 regular points to be earned, but the possibility for 2 extra-credit points makes the maximum possible score 17. Here is a summary of the scores for the 12 students who submitted papers (one student didn't submit a paper): So far, the four HW assignments have had 45 regular points, plus 4 extra-credit points. According to this web page, at the end of the summer session, I'll compare the total number of points you earn to 90% of the total number of "regular" HW points to obtain your overall homework score. So, to gauge how you're doing so far, you can compare the total number of homework points you've earned to 0.9(5+10+15+15) = 0.9(45) = 40.5. The values written in green ink on your HW 4 papers gives you this comparison.
June 22, 2018 (4:15 AM)
I put a link to the answers for Quiz 4 on the quiz web page.
June 21, 2018 (5:28 AM)
I put a link to HW 6 on the homework web page.
June 20, 2018 (7:01 AM)
I put a link to the answers for HW 3 on the homework web page. I also put a link to the answers for Quiz 3 on the quiz web page.
June 15, 2018 (1:17 PM)
I put a link to the answers for HW 2 on the homework web page. I also put a link to the answers for Quiz 2 on the quiz web page.
June 14, 2018 (1:40 AM)
I posted descriptions of the 4th, 5th, 6th, and 7th quizzes on the quiz web page.
June 13, 2018 (8:16 PM)
I put links to HW 4 and HW 5 on the homework web page. (HW 4 is based on Ch. 3 material covered this week, but HW 5 is related to Ch. 4 material to be covered next week. (Specifically, HW 5 is based on something covered in the Ch. 4 videos, but not the text book ... but I'll discuss the topic in class.)) *** Because I don't want to move too slowly as we cover the lengthy Ch. 3 of the text, I'm going to give a somewhat condensed presentation of subsections 3.3.1 and 3.3.2 of the text. So, in order to make sure that you have an adequate understanding of this material, I encourage you to carefully read those parts of the text. You can also watch the 4th and 5th Ch. 3 videos linked to from the book's web site.
June 13, 2018 (8:20 AM)
I put a link to the answers for HW 1 on the homework web page. 11 of 13 students earned the maximum score of 5, and the other students received minor deductions for minor mistakes (not rounding properly, and not making the plot as instructed). I also put a link to the answers for Quiz 1 on the quiz web page.
June 12, 2018 (7:04 PM)
In part (b) of Problem 1 of HW 3, I changed K = 1 to K = 5 (because K = 1 resulted in a problem when one is trying to determine a clear-cut correct answer (because of the fact that two points are tied as being the closest neighbor to the query point)).
June 8, 2018 (9:55 PM)
I put a link to HW 3 (which is due on Tuesday, June 19) on the homework web page. It's based on material I'll cover in lecture this coming Tuesday (but I went ahead and posted it now so that I could be ahead in my work for next week). I also posted a description of the 2nd and 3rd quizzes on the quiz web page. (Be sure to note that both of these quizzes are closed book/notes/internet/etc.)
June 8, 2018 (1:25 AM)
I put a link to HW 2 (which is due on Thursday, June 14) on the homework web page. If you're good with probability then it shouldn't be very difficult, but otherwise you might want to get started on it right away, to give yourself plenty of time for it in case you run into trouble. Please note that you're not suppoe to discuss (or share work pertaining to) the extra credit portion of the assignment with anyone.
June 6, 2018 (12:53 AM)
I put a link to HW 1 (which is due on Tuesday, June 12) on the homework web page. It is rather trivial (and extremely so if you're familiar with R). Even if you've never used R before, I suspect that you'll find it very easy, but try to get started on it as soon as possible just in case you have some sort of difficulty. (Note: I'm only requesting that you turn in one plot and four numerical answers. Most of you should be able to do the assignment pretty quickly once you get R installed.)
May 20, 2018 (3:22 AM)
I just finished editing this web site to make it ready for the start of the 2018 Summer session. (I'll add to it a lot as we go through the course during June and July.) Please take time to read the syllabus rather carefully and also read through the policies and expectations concerning homework on the this web page. I'll expect students to comply with all of the stated rules and procedures. *** I realize that meeting twice a week during June and July is going to be tough for a lot of you who work full time, but I'm going to try to make it so this course is hopefully not too painful (and some of you may even think it's fun, particularly if you're the type of person who gets a lot of satisfaction in learning how to easily apply powerful statistical methods in order to analyze somewhat complex data sets).