Assignment 4 - Hand in Q 3, 4, 6 - Due 2332009

Assignment 4 - Hand in Q 3, 4, 6 - Due 2332009 - THE...

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

View Full Document Right Arrow Icon

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

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: THE UNIVERSITY OF HONG KONG DEPARTMENT OF STATISTICS AND ACTUARIAL SCIENCE STAT 0302 Business Statistics Assignment 4 (Do all. Hand in solutions to the three starred questions on or before 23.3.09) 1. The following system of linear equations is given: 2 =- a- 4 b, 12 = 2 a- b, 14 = 3 a + b, 21 = 5 a + 3 b, 25 = 4 a- 3 b. (i) Find the normalized solutions. (ii) What is the minimum squared discrepancy (i.e., least squares discrepancy)? 2. The following table gives the statures and step lengths (both in cm) of 10 randomly selected males in the age group 20- 30: Stature ( y ) 162 178 170 163 166 156 158 149 157 163 Step ( x ) 75 80 78 71 74 67 70 62 69 73 (i) Fit a regression line ˆ y = a + bx to the data for the purpose of estimating y given x . (ii) A detective measured the step length of an escaped suspect (who had been confirmed to be about 25 years old) to be 74 cm. How tall was the suspect likely to be?...
View Full Document

Page1 / 3

Assignment 4 - Hand in Q 3, 4, 6 - Due 2332009 - THE...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online