STAT 359/563 A01 (Spring 2018)
Assignment 3:
Due 1:00pm, March 8
1. (10 marks) The 2004 Canadian Campus Survey aimed to learn about individual,social, and environmental factors related to alcohol use, other drug use, mentalhealth, and gambling problems among Canadian undergraduates.The surveycomprised a random sample of 6282 full-time university undergraduates from 64universities across Canada.Use the data in the following table to examine ifthere is independence of alcohol use and region of the country.Alcohol usein the pastBritishmonthColumbiaPrairiesOntarioQuebecAtlanticYes56039715701729660No233116537347133(a) (8 marks) State the hypotheses, test statistic and its distribution under thenull hypothesis, p-value of the test, conclusion, and R codes.(b) (2 marks) What are the assumptions for the test in (a)? Are the assumptionsvalid?2. (16 marks) A semiconductor manufacturer has developed three different methodsfor reducing particle counts on wafers.All three methods are tested on fivedifferent wafers and the particle counts are obtained. The data are shown below.