Ap statistics Chapter 6 Normal Model-key
Consider the fuel economy model again: N(24,6). Sketch pictures as you answer these questions
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| Consider the fuel economy model again: N(24,6). Sketch pictures as you answer these questions.
What percent of cars get less than 20 mpg? 
An ecology group is lobbying for a national goal calling for no more than 10% of all cars to be under 20 mpg. If the standard deviation does not change what average fuel efficiency must be attained? 
Car manufacturers argue that they cannot raise the average that much – they believe they can only get to 26 mpg. What standard deviation would allow them to meet the “only 10% under 20 mpg” goal? 
What change in the fuel economy of cars would achieving that standard deviation bring about? What are the advantages and disadvantages? Directory: cms -> lib5 -> PA01001234 -> Centricity -> Domain -> 1009 Domain -> Michael Vick: The Cruelty Criminal Born on June 26, 1980 Domain -> Alphonse “Al” Capone By: Devin Wylie Background Domain -> Honors U. S. History Mr. Lucot Woodstock Facts and Statistics Domain -> Background: Born in 1928 in Alton, Illinois into a poor family Domain -> Battle of Fort Sumter Domain -> American Authors – List and Backgrounds for Research Paper Louisa May Alcott 1009 -> Chs statistics Chapters 20 & 23b review Test the following hypothesis testing Domain -> Chapter overview Domain -> Chapter 1 answers to end-of-chapter and appendix questions Download 0.65 Mb. Share with your friends:
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