HW4_STA5166_#2_old

HW4_STA5166_#2_old - 4.2 a) What is this design called?...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
4.2 a) What is this design called? What characteristics does it have? The problem is a Latin-Square experimental design The study consists of 6 treatments (A-F) of “Volunteers,” 6 blocks (I-VI) of “Positions on arm,” and 6 blocks (#1-6) of “Subjects.” b) How can such a design be randomized? Why? 1. Randomly select one of the standard 6X6 Latin Square 2. Randomly permute the rows and columns of chosen square. 3. Randomly assign the 6 treatments to the 6 letters of treatments( A-F) c. > Prob4.2=read.table(file="E:/FSU-FALL07-School/Fall07-school/STA5166/BHH2- Data/prb0402.dat", header=TRUE) ##change variables to characters > new2 <- edit(Prob4.2) > fit1=aov(y~position +subject+treatment, data=new2) > fit1 Call: aov(formula = y ~ position + subject + treatment, data = new2) Terms: position subject treatment Residuals Sum of Squares 219.917 5407.917 250.250 1708.667 Deg. of Freedom 5 5 5 20 Residual standard error: 9.243015 Estimated effects may be unbalanced > > summary(fit1) Df Sum Sq Mean Sq F value
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/14/2011 for the course STAT 5166 taught by Professor Staff during the Fall '11 term at FSU.

Page1 / 4

HW4_STA5166_#2_old - 4.2 a) What is this design called?...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online