Intro to Stat_Part_44

Intro to Stat_Part_44 - 146 CHAPTER 9. HYPOTHESIS TESTING:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
146 CHAPTER 9. HYPOTHESIS TESTING: SINGLE MEAN AND SINGLE PROPORTION C. The average is still about the same as it was in 1995. D. The test is inconclusive. Exercise 9.44 (Solution on p. 150.) The Type I error is: A. To conclude the average hours per week in 2007 is higher than in 1995, when in fact, it is higher. B. To conclude the average hours per week in 2007 is higher than in 1995, when in fact, it is the same. C. To conclude the average hours per week in 2007 is the same as in 1995, when in fact, it is higher. D. To conclude the average hours per week in 2007 is no higher than in 1995, when in fact, it is not higher. 9.3 Review Questions 7 Exercise 9.45: REVIEW QUESTION 1 (Solution on p. 150.) 1. Rebecca and Matt are 14 year old twins. Matt’s height is 2 standard deviations below the mean for 14 year old boys’ height. Rebecca’s height is 0.10 standard deviations above the mean for 14 year old girls’ height. Interpret this. A. Matt is 2.1 inches shorter than Rebecca B. Rebecca is very tall compared to other 14 year old girls. C.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

Intro to Stat_Part_44 - 146 CHAPTER 9. HYPOTHESIS TESTING:...

This preview shows document pages 1 - 2. Sign up to view the full document.

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