{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

STAT 1124 Assignment 3 Model Answers

# STAT 1124 Assignment 3 Model Answers - STAT 1124 Assignment...

This preview shows pages 1–2. Sign up to view the full content.

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 Draw a picture before you attempt to solve the problem A score pf 16000 standardizes to z = (1600-1026)/209 = 2.75 From the table, the proportion is 0.997. Therefore 1-0.997 or 0.003 or 0.3% of the scores are above this level and therefore reported as 1600.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}