STAT 1124 Assignment 3 Model Answers

STAT 1124 - STAT 1124 Assignment 3 Model Answers Question 3.4 Page 69 a Mean is C Median is B b Mean is B Median is B c Mean is A Median is B

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STAT 1124 Assignment 3 Model Answers Question 3.4, Page 69 a. Mean is C, Median is B b. Mean is B, Median is B c. Mean is A, Median is B Question 3.30, Page 86 Draw a picture before you attempt to solve the problem a. 0.0122 b. 1-0.0122 = 0.9878 c. 1-0.9616 = 0.0384 d. 0.9616-0.0122 = 0.9494 Question 3.32, Page 86 Draw a picture before you attempt to solve the problem Tonya's score standardizes to z = (1318-1026)/209 = 1.40 Jermaine's score standardizes to z = (27-20.9)/4.8 = 1.27 Tonya's score is higher Question 3.34, Page 87 Draw a picture before you attempt to solve the problem Jose's score standardizes to z = (1287-1026)/209 = 1.249 The equivalent ACT score = 20.9+1.249*4.8 = 26.9 or 27, since ACT score is reported in whole number Question 3.36, Page 87 Draw a picture before you attempt to solve the problem Tonya's score standardizes to z = (1318-1026)/209 = 1.40 From the table, we will find the proportion to be 0.9192 or 92%, i.e., 92 percentile. Question 3.38, Page 87
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This note was uploaded on 07/14/2010 for the course STATS 1124 taught by Professor Michael during the Summer '09 term at Langara.

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STAT 1124 - STAT 1124 Assignment 3 Model Answers Question 3.4 Page 69 a Mean is C Median is B b Mean is B Median is B c Mean is A Median is B

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