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Unformatted text preview: MAT2378B: Assignment 1 Due date: 23 September 2009 Total number of points: 33 Q 1. (2.1 in the textbook) For parts (a) and (b), (i) identify the variables in the study; (ii) for each variable, write the type of variable (cathegorical/ordinal, discrete etc.); (iii) identify the observation unit; (iv) determine the sample size. (a) A paleontologists measured the width (in mm) of the last upper molar in 36 specimens of the extinct mammal Acropitheus rigidus . (b) The birthweight, date of birth, and the mothers race were recorded for each of 65 babies. Notes to Q1: If you have problems, solve Q2.2 first and check answers in the students solutions manual, if you have one. Solution to Q1: For part (a): (i) Molar width, (ii) continuous variable ( CHANGE: both answers, discrete/continuous will be accepted), (iii) A molar, (iv) 36; for part (b): (i) birthweight, date of birth, race (ii) continuous, discrete, categorical, respectively, (iii) A baby, (iv) 65....
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- Fall '09