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1.3.1 In each of the following studies, identify which sampling technique
best describes the way the data were collected (or could be treated as if
they were collected): simple random sampling, random cluster
sampling, or stratified random samp
STAT S320, Solutions to Homework 3
1. (Exercise 4.5.3) Consider an urn that contains 10 tickets, labelled
cfw_1, 1, 1, 1, 2, 5, 5, 10, 10, 10.
From this urn, I propose to draw a ticket. Let X denote the value of the ticket I draw.
Determine each of the fo
STAT S320, Solutions to Homework 1
1. (Exercise 1.5.1) Select a penny minted in any year other than 1982. Find a smooth surface
on which to spin it. Practice spinning the penny until you are able to do so in a reasonably
consistent manner. Develop an expe
STAT S320, Solutions to Homework 2
1. (Exercise 3.7.2) Consider two urns, one containing four tickets labelled cfw_1, 3, 4, 6; the other
containing ten tickets, labelled cfw_1, 3, 3, 3, 3, 4, 4, 4, 4, 6.
(a) What is the probability of drawing a 3 from the