# Lecture 15 - Course Project Abstracts due on Friday April 4...

This preview shows pages 1–10. Sign up to view the full content.

Course Project Abstracts due on Friday, April 4, 2008 (same day as exam 3) Abstracts should be brief and to the point: Tentative Project Title and Four Sentences 1. Objective of the study 2. Summary/Source of the data 3. Anticipated method(s) to be applied 4. How the study relates to your major

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

View Full Document
Exam 3 is on Friday, April 4. That exam will cover Chapters 8, 9, and 10 (even though we will get into Chapter 11 before April 4). Homework assignment 3 will subsequently include problems from chapters 8-10 only.
For large sample tests on two population proportions the test statistic is given by: 12 2 1 11 ˆˆ ˆ ˆ (0 ) / ˆˆˆ / and / and ( ) /( ) Zp p p q nn where px m p y n p x y m n ⎛⎞ =− + ⎜⎟ ⎝⎠ == = + +

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

View Full Document
See text for type II error probability and sample size calculation details on page 356 and 100%(1- α ) and confidence interval calculations on page 357.
Problem 9-47 (page 358) Two sample test on proportions Example Test on proportions with sample size calculation based on β

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

View Full Document
11 1 22 2 12 ˆ 30 200 0.15( ) ˆ 180 600 0.3 ˆ 0.263 :0 0.01 oa x n p induced xn p xx p nn Hp p p pp α == = = + + −= −< =< = 9-47 2 1 ˆˆ . 0.15 0.3 4.18 0.0359 Reject Std Error pq Z ⎛⎞ + ⎜⎟ ⎝⎠
12 01 2 1 2 Sample Data 2002 2003 5726 5384 1105 982 ˆˆ p 0.193 p 0.182 0.1 :. : a mn xx Hp p v sHp p α == = = ˆ 0.188 11 0.00742 0.193 0.182 1.48 0.00742 p StdError pq Z Fail + + ⎛⎞ += ⎜⎟ ⎝⎠ Was the on-time percentage of commercial flights in 2002 the same as in 2003?

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

View Full Document
() ( ) 12 2 21 2 1 2 1 1 2 2 2 2 2 2 Find (assuming that n=m) so that .1 when p 0.2, p 0.18 (see page 356) 2 1.645 1.28 6582 n Zp p q q Z p q p q n d Z Z dp p αβ α β == = ++ + + = = ⎛⎞ ⎜⎟ = ⎝⎠ =−
The 5-Step Hypothesis Testing Procedure Step 1:

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.

## This note was uploaded on 04/08/2008 for the course ENGR 2600 taught by Professor Malmborg during the Spring '08 term at Rensselaer Polytechnic Institute.

### Page1 / 29

Lecture 15 - Course Project Abstracts due on Friday April 4...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online