lecture05 - • Chapter 5 … please read • Will be doing...

Info iconThis preview shows pages 1–8. 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

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

View Full DocumentRight Arrow Icon

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

View Full DocumentRight 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: • Chapter 5 … please read • Will be doing chapter 6 in the next lecture set • Some suggested problems: – Chapter 4: 4.9, 4.17, 4.21, 4.29 – Chapter 5: 5.3, 5.7, 5.15, 5.17 • Generally, we have been discussing observational studies • These methods look at the current population and try and extract information • No attempt is made to change anything or influence the response • Note: a sample survey is a type of observational study • Observational studies often subject to the presence of lurking variables • A quick glance at the weekly ice cream sales in the summer months shows that when sales are high, deaths in recreational boating accidents is also high. Similarly, when sales are low, deaths in recreational boating accidents is also low • What does this tell us? • Designed experiments: we modify the factors of interest and see the response • By manipulating the explanatory variables, we are trying to establish a cause-and-effect relationship between a set of variables and the response of interest • Response variable: • Explanatory variable: • Treatment: •...
View Full Document

This note was uploaded on 03/10/2011 for the course STAT 100 taught by Professor D during the Spring '11 term at Simon Fraser.

Page1 / 21

lecture05 - • Chapter 5 … please read • Will be doing...

This preview shows document pages 1 - 8. Sign up to view the full document.

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