Stat 160 Fall 2008
Solutions to Assignment #1
#1.26 (a) A bar graph displaying the number of deaths among persons aged 15 to 24 years in the United
States in 2003 due to accidents, homicide, suicide, cancer, heart disease, and congenital defects
is shown
Stat 160 Fall 2008
Solutions to Assignment #2
#2.34 (a) In order to graph the distribution, it is ne to use either a histogram or a stemplot.
A histogram of the survival times (in days) of the 72 guinea pigs under consideration is shown
below. As noted on
Stat 160 Fall 2008
Solutions to Assignment #3
#3.26
It is easiest to draw a stem-and-leaf plot if we multiple our data by 100 and then round to
the nearest 10. Thus, our transformed data for soil with intermediate compression is
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Stat 160 Fall 2008
Linear Regression and Least Squares
In the box Least-Squares Regression Line on page 119, Moore writes:
The least-squares regression line of y on x is the line that makes the sum of the
squares of the vertical distances of the data poin
UNIVERSITY OF REGINA
DEPARTMENT OF MATHEMATICS & STATISTICS
Statistics 160 001, 002
Final Examination
201410
Time : 3 hours
NAME :
Instructor: Dr. Y. Zhao (001)
STUDENT NO. :
Dr. R. McIntosh (002)
SECTION :
Show all your work on the pages of this examinat