Introduction
The data set that I found is about the relationship between the percentage of body fat and
various predictors taking a sample of 248 men. These predictors include percent body fat
(using another method of calculation), weight, height, adiposi
MAT3375 (Fall 2010)
Assignment 2
Due date (Assignment 2): 10 November 2010
Q1. (3 points) Let rXY ne the sample correlation coecient between X and Y :
rXY =
SXY
.
SXX SY Y
Let Z = aX + b, a > 0. Show that rZY = rXY .
Solution to Q1:
We show rst that SZY
MAT3375 Project 1
Analyze the relationship between the production time in hours and the production lot
size.
Yi Xing #5359701
a)
Program:
DM "OUTPUT" clear;
DM "LOG" clear;
DATA MAT3375.production;
INPUT size hours;
DATALINES;
;
RUN;
dm "output" clear;
dm