2b03test1version1 - Stats 2B03 Test #1 (Version 1) October...

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Stats 2B03 Test #1 (Version 1) October 26th, 2009 Name Student Number: :________________________________________ ______________ (Last Name) (First Name) Day Class Duration Instructor: : 75 Minutes Childs, Zhu Maximum Mark : 21 This test paper consists of 20 multiple choice questions worth 1 mark each, and one question worth 1 mark on proper computer card filling. Marks will NOT be deducted for wrong answers (i.e., there is no penalty for guessing). QUESTIONS MUST BE ANSWERED ON THE COMPUTER CARD with an HB PENCIL. Answer all questions. You are responsible for ensuring that your copy of this paper is complete. Bring any discrepancy to the attention of your invigilator. Only the McMaster standard Calculator Casio fx-991 is allowed. 1. Consider the Minitab output below which gives histograms for the weights of 800 newborn babies in ounces for children born male, and female. If a baby is selected at 12 œœ random from the 800, find the probability that the baby is male, or weighs at least 160 ounces. tounces Frequency 160 120 80 40 0 160 140 120 100 80 60 40 20 0 160 120 80 40 0 1 2 10 51 145 140 51 13 3 3 2 7 26 124 159 46 10 4 4 2 Histogram of tounces Panel variable: sex (a) (b) (c) (d) (e) .4552 .4963 .5217 .5313 .5438
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2. Consider the below variables from the Birth data set. Which of these variables is measured on the ordinal scale? sex Sex of child ( male, female) marital Marital status ( married, not married) hispmom Mother of Hispanic origin (C Cuban, M Mexican, N Non- œœ œ Hispanic, O other and unknown Hispanic, P Puerto Rican, S Central/South American, U not classifiable smoke mother did not smoke during pregnancy mother did smoke during pregnancy drink mother did not consume alcohol during pregnancy mother did consume alcohol during pregnancy low infant was not low birth weight infant was low birth weight premie infant was not premature
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This note was uploaded on 01/13/2011 for the course STATS 2B03 taught by Professor Childs during the Fall '10 term at McMaster University.

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2b03test1version1 - Stats 2B03 Test #1 (Version 1) October...

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