Stat 2005 homepage

Stat 2005 information

Stat 2005 activity page

Stat 2005 bulletin board

Stat 2005 resource page

CHAPTER 7

Homework assignment

 

Please complete the following homework assignment from the textbook and deliver to me (via e-mail, us mail, fax or by hand) by March 23, 2000. Note: You should attempt all the problems BUT ONLY TURN IN THE PROBLEMS INDICATED IN RED TO ME. Show your work when appropriate- lists of answers will not be graded.

HW #6:

p. 357: 1-4, 9-16

p. 372: 1,5,6,9,16,20

p. 383: 1,3,5,7,10,12,13,20

p. 392: 1,2,4,6,11,15

p. 400: 1, 3, 4, 5, 10, 12

 

Writing Assignment #6

Does seeding of clouds with silver nitrate increase rainfall? You might be familiar with the practice of seeding clouds with silver nitrate to "create" rain. Does this work. Go to the following site and get the data:

http://lib.stat.cmu.edu/DASL/Datafiles/Clouds.html 

Do a hypothesis test (you decide which one to use) to determine if the average amount of rainfall from the seeded clouds exceeds 165 acre feet. Make sure you include all the required elements of the hypothesis tests and state clearly in non-technical terms your conclusion.