chapter8 - CHAPTER 8 TESTS OF SIGNIFICANCE 8.1 Tests about...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
1 CHAPTER 8: TESTS OF SIGNIFICANCE 8.1 Tests about the mean when σ is known Example: Canada Packers claims that the average fat content μ of its ground beef is 10%. A consumer agency took a random sample of n=100 packages and determined the fat content of each one. It was found that x = 10.6 (percent). Is there sufficient evidence to conclude that Canada Packers claim is false? Assume that standard deviation σ =2. Population Random Sample of 100 packages x = 10.6 Two alternative claims: 1. Canada Packers (CP): μ =10 2. Consumer Agency: μ >10 μ =10
Image of page 1

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

View Full Document Right Arrow Icon