Assignment 1

# Assignment 1 - STAT 2507A Assignment #1 Due: June 24, 2009...

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STAT 2507A – Assignment #1 Due: June 24, 2009 at the beginning of class. Assignments may be completed in groups of up to 3 persons. 1. [5 marks]A recent article from the Financial Post (May 22, 2009) said: “…Canadian consumers are becoming increasingly confident about the prospects for an economic recovery and appear ready to start spending again, according to a national confidence survey…"The picture developing in the minds of Canadian consumers is one of steadying confidence," said Michael Antecol, vice−president of TNS Canadian Facts.” If you were planning on doing a survey to verify the statement, what would be your: a) population? Why? b) sample? Why? c) variable? Why? d) For the variable you gave in part c, give some examples of the type of values that you would record. Is the variable quantitative or qualitative? 2. [5]You are asked over the phone “How old are the people in Montréal that are being charged for violent crimes?”. Provide what you would say over the phone to best answer the question with only the graph below.

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3. [10]The following data is a sample of salaries for company XYZ.      69,5 12       37,5 50       68,2 66       47,8 86       36,6 13       40,1 31       54,2 31       50,3 80       61,1 40       54,0 91       51,0 60       51,2 28       46,0 44       55,9 61       37,8 48       46,9 78       57,6 83       68,3 97       57,4 73       41,7 98       51,0 74
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## This note was uploaded on 05/24/2011 for the course STAT 2507 taught by Professor Masoudmollaalizadehnasari during the Summer '09 term at Carleton CA.

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Assignment 1 - STAT 2507A Assignment #1 Due: June 24, 2009...

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