STA 6166: Statistical Methods in Research I (Section:13F8)

Meets: M W F 4 (10:40 - 11:30) in FAB 103

Instructor
 Teaching Assistant
Demetris Athienitis Pei-Li Wang
Griffin-Floyd 116B Griffin-Floyd 209
E-mail: dathien@stat.ufl.edu E-mail: peilicat@stat.ufl.edu
Tel: 352-273-2972 Tel: 352-273-2986
Office Hours:  M: 15:00-15:50, R: 15:00-16:00
 Office Hours:  M,W: 16:05-16:55, R:09:35-10:25

  
Links:

Syllabus

Examples in R

R Reference card

R lessons

Additional website of complete SAS lessons

Z table

T table
 Announcements:
Date 02/19:
No class Friday March 1st 2013.

Office hours for February 25th and 26th have been changed to Thursday February 28th 15:00-17:00.

Date 02/13:
Exam 1 scores will be posted on Sakai Wednesday Feb 13th 5pm. Please see the syllabus regarding overall grade scheme for the class.

Date 02/04: EXAM and QUIZ INFO
Exam 1 will be on Feb 11th in class. You are allowed to bring
  • Calculator
  • One sided formula sheet of your own creation.
Practice questions have been posted. A QUIZ will be given on Friday Feb 8th (in addition to handing in the HW) based on the first 4 practice questions.


Concerning quizes, the lowest quiz will be dropped at the end of the semester.

Date 01/25:
For Friday February 1st, instead of handing in HW, a 5 minute quiz will be given based on one of the HW problems (some numbers maybe changed).

Date 01/07:
Slides of first day, Chapter 1 and Chapter 2
Homework:

For quiz 02/27: 5.16 (but test Ha: μ≠38 and create a CI that reaches the same conclusion), 5.19a, 5.22.

Due 02/22: 5.4, 5.5, 5.8, 5.11

Due 02/08: 11.39 (from textbook)
and for the following table
x 1 2 3 4 5 6 7
y 2 1 4 3 7 5 6
- Calculate the sample correlation coefficient of rxy (x with y). Describe the association between x and y.
- Calculate the sample variance of x and of y. Use this to find the sample covariance.
- Calculate the sample correlation coefficient of ryx (y with x), how does it relate to rxy
- Add 5 points to each y observation and calculate the new rxy.

For quiz 02/01: Let Y be a continuous random variable with p.d.f. f(y)=8y, 0<y<0.5
  1. Find the mean
  2. Find the mean of 0.7(Y)-2
  3. Find the 75th percentile
  4. Find the variance
  5. Find the variance of 0.7(Y)-2
  6. Find P(0.1<Y<0.4)
  7. Find P(0.1<Y<0.7)
  8. Find P(Y=0.3)


Due 01/25: 4.10, 4.15, 4.20, 4.25 from textbook

Due 01/18: Use data in ".xls" format or data in ".txt" that contains monthly data of production quantity and cost of a manufacturing plant.
Find the following:
  1. Mean, Quartiles and Variance of "Production" and "Cost" for the whole duration.
  2. Same as (1) but for each 12 month (annual) period.
  3. Boxplot of "Production" for the whole duration and then 4 boxplots for each year.
  4. Histogram of "Cost" for the whole duration and then 4 boxplots for each year.
  5. Scatterplot of "Cost" vs "Production".
Must be handed in before Friday's class in paper format either handwritten or typed. Use of software is encouraged for which you must also provide output/code in relevant sections in your document.



Practice Problems (Do not turn in)
Chapter 1: 1,2,5,6
Chapter 2: 1,2,4,5,6,7,8
Chapter 3: 1,6,8,10,11,12,17,19,22,23,25,27,28,29,31
Chapter 4: 1,3,12,15,16,18,19,21,22,26,27,28,33,34,41,43,44,46,47,48,53,54,55,57,58
Chapter 5: 2,3,4,5,7,9,11,12,13,16,17,19,21,23,24,25,26,28,29,32,33,34,35,40,41,43,47,48
Chapter 6: 1,2,3,4,5,6,8,9,12,14,15,16,18,19,20,21,29,30,31,32,33,37,38
Chapter 7: 1,2,3,7.10,11,12,13,15,16
Chapter 8: 1,2,3,4,5,6,7,8,9,10,11,15
Chapter 9: 1,2,3,4,5,6,7,8,10,11,12,13,14,19,20,21,22,23
Chapter 10: 1,2,7,8,10,11,13,14,16,17,20,21,28,29,30,31,32,41
Chapter 11: 1,2,3,4,5,9,10,16,17,18,19,20,26,27,31,32,37,38,47,48,53
Chapter 12: 1,2,3,4,5,6,7,8,11,12,13,14,15,18,19,20,21,22,23,24,25