This preview shows pages 1–10. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Will Landau September 19, 2011 STAT 231 Problem Set 4 Solutions Exercise 4.1. Ill walk you through how to generate one of the pmfs. Lets say I want to generate the pmf for Poisson( =4). My data looks ilke this so far: I doubleclick on the title of the farright column (the one I want to fill in) and get this: 1 I go to Column Properties > Formula: I get the following screen and click on the Edit Formula button: 2 The formulaediting window comes up. I go to Discrete Probability > Poisson Probability as I show below (Note: Poisson Distribution gives the cdf, not the pmf): And voila: 3 I enter 4 where the formula says lambda and click and drag x from the upper left area of the window to where the formula says k. I click the Apply button, and the column fills up like so: Theres no builtin formula for the geometric distribution, so youll have to write your own in a similar way. Youve already used Graph Builder, so I 4 didnt walk you through that bit. Here are the plots: 5 6 7 Exercise 4.2. Note: you can add rows by clicking on one of the red triangles in the upper lefthand corner of a data table. Here are my simulated plots. They should look like the analogous plots for the previous problem. Exercise 4.3 (Devore 3.48, 3.49, 3.50, 3.51, 3.60) . 3.48 a. P ( X 2) = 2 i =0 b ( i ;25 ,. 05) = 2 i =0 ( 25 i ) ( . 05) i ( . 95) 25 i = .873 b. P ( X 5) = 1 P ( X 4) = 1 4 i =0 b ( i ;25 ,. 05) = 8 1 4 i =0 ( 25 i ) ( . 05) i ( . 95) 25 i = 1 . 993 = .007 c. P (1 X 4) = 4 i =1 b ( i ;25 ,. 05) = 4 i =1 ( 25 i ) ( . 05) i ( .....
View
Full
Document
This note was uploaded on 02/11/2012 for the course STAT 231 taught by Professor Staff during the Fall '08 term at Iowa State.
 Fall '08
 Staff

Click to edit the document details