Solution-HW1

Solution-HW1 - MGMT 305 Spring 2007 Assignment 1 Solution...

Info iconThis preview shows pages 1–3. 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: MGMT 305 Spring 2007 Assignment 1 Solution (Chapters 3, 5, 6) Chapter 3 27. ( 18 points—3 each ) a. f (12) = .1144 b. f (16) = .1304 c. P ( x ≥ 16) = f (16) + f (17) + f (18) + f (19) + f (20) = .1304 + .0716 + .0278 + .0068 + .0008 = .2374 d. P ( x ≤ 15) = 1 - P ( x ≥ 16) = 1 - .2374 = .7626 e. E ( x ) = n p = 20(.7) = 14 f. Var ( x ) = n p (1 - p ) = 20 (.7) (.3) = 4.2 σ = 4.2 = 2.0494 35. ( 12 points—3 each ) a. f (0) + f (1) + f (2) = .0115 + .0576 + .1369 = .2060 b. f (4) = .2182 c. 1 - [ f (0) + f (1) + f (2) + f (3) ] = 1 - .2060 - .2054 = .5886 d. μ = n p = 20 (.20) = 4 Chapter 6 21. ( 10 points) From the normal probability tables, a z-value of 2.05 cuts off an area of approximately .02 in the upper tail of the distribution. x = μ + z σ = 100 + 2.05(15) = 130.75 A score of 131 or better should qualify a person for membership in Mensa. 25. μ = 442.54, σ = 65 a. ( 5 points) 400 442.54 .65 65 z- = = - P ( x > 400) = P ( z > -.65) = .5000 +.2422 = .7422 1 b. ( 5 points)...
View Full Document

This note was uploaded on 06/29/2008 for the course MGMT 305 taught by Professor Priya during the Spring '08 term at Purdue.

Page1 / 3

Solution-HW1 - MGMT 305 Spring 2007 Assignment 1 Solution...

This preview shows document pages 1 - 3. Sign up to view the full document.

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