Stat 322/332
Short Solutions to Assignment 4
1. (a)
1) All students who graduated from Math Faculty during 19972001.
2) A stratified population, with each of the five years as a stratum; The sample frame con
sists of a stratified list of mailing addresses for students graduated during the five year period.
3) All students who are on the mailing lists and who could be reached by mail and are
willing to return the questionnaire.
4)
y
ij
= 1 if the
j
th student from year
i
found a job within three months from graduation,
zero otherwise.
5) The proportion of students who found a job within three months from graduation
among all graduates.
1. (b)
1) All Canadians aged 18 or older who live in one of the 10 provinces.
2) A stratified population with 10 strata. The sampling frame can be viewed as a simple
stratified lists of residential phone numbers for each of the 10 provinces if each phone number
represents a unique person; it is a stratified list of clusters if each phone number represents
a house (a group of people).
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 Fall '09
 Xu(Sunny)Wang
 Yi, th person

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