STATS 201 Home Work #5 - Due Tue, Nov 3, by 5pm
1. Refer Textbook KNN Problem 6.15 on Page 250.
a. Create a boxplot for each of the 4 variables. Are there any noteworthy features
revealed by these plots?
b. Textbook Problem 6.15.c
c. Textbook Problem 6.16

STATS 201 Home Work #7 - Due Tue, Nov 17, by 5pm
1. Textbook Problem 8.12 on Page 337.
2. Textbook Problem 8.14 on page 337.
3. Textbook Problem 8.15 on page 337. (you need to combine data sets from Problem 1.20 and
Problem 8.15.)
4. Textbook Problem 8.21

STATS 201 Home Work #4 - Due Fri, Oct 23, by 5pm
1. Textbook Problem 5.2 on page 209
2. Textbook Problem 5.4 on page 210
3. Textbook Problem 5.12 on page 211
4. Refer to Q2 and Q3 above,
a. Find the project matrix H
b. Verify that HX = X
c. Verify that H1

STATS 201 Home Work #9 - Due Tuesday, Dec 08, by 5pm
1. Sketch an interaction plot of possible cell means for the following scenarios:
a. Factor A has 3 levels, Factor B has 2 levels. There is an AB interaction, but no A or B main
effects.
b. Factor A has

STATS 201 Home Work #8 - Due Tuesday, Dec 01, by 5pm
1. Refer to Market Share data set APPENC03 (KNN, page 679).
a. Without any modeling, obtain the average market shares for each of the four marketing
strategy configurations:
i. average market share with

STATS 201 Home Work #3 - Due Tus, Oct 20, by 5pm
Revised on Oct 13 The two variables are identified for Q4.
1. Textbook Problem 3.13 on page 150
a. Obtain Boxplot charts for X and Y, respectively.
b. 3.13a
c. 3.13b
2. Textbook Exercise 3.19 on page 151
3.

STATS 201 Home Work #1 Due Mon, Oct. 5 by 5pm
1. Refer to Example on page 19 of the textbook for the following questions; except part e, all calculations
are to be carried out manually with a hand calculator; show your works to get full credit.
a. What ar

STATS 201 Home Work #2 - Due Mon, Oct 12, by 5pm
1. Refer to the data set in Textbook Problem 1.20 for the following questions.
a. Obtain sample mean and variance of both X (number of copiers) and Y (number of
minutes), their covariance, as well as the Pe

R Programming Tips
STATS 201, 30Sep2015 Discussion
(The materials presented below are excerpts with minor modification from that used in STATS
201, Fall 2014, taught by Stacey Hancock)
The R Console
When you open RStudio, you will see the "Console" window