1/16/2013

Lecture - Open p:\data\math\hartlaub\dataanalysis\lectures\chapter0.ppt

Chapter 0

• Review of statistical inference
  • Null hypothesis
  • Alternative hypothesis
  • Hypothesis test
  • Sampling distribution
  • Critical region
  • Significance level
  • Type I and Type II errors
  • Null distribution
  • P-value
• Confidence intervals for a population mean
  • When the population standard deviation is known (not useful)
  • When the population standard deviation is unknown (t interval)
  • Interpreting CI

Introduction to R

• Reading data from a file - importing Excel files (read Day1.csv into R)
• Viewing the data
• Sorting data
• Descriptive statistics for the pulse data
• Graphical displays for the pulse data

Please read Sections 1.1 and 1.2 for class on Friday