Stat 2000, Section 001, Homework Assignment 3 (30 Points)

(1/29/2010 - Due Friday 2/5/2010 by 9:35am)

0) Reading: Section 1.3
1) Please work on the following textbook exercises in Moore/McCabe/Craig:
- Exercise 1.74, 1.92, 1.108, 1.109, 1.110, 1.111, 1.113, 1.114, 1.116, 1.117, 1.120, 1.121 (2 points each)
  
  The data set for Exercise 1.74 is the same as for Exercise 1.43 and can be found at hw02.html.
2) First read the text between Exercises 1.125 and 1.126. Then work on the following textbook exercises in Moore/McCabe/Craig:
- Exercise 1.126, 1.127, 1.128, 1.129, 1.130, 1.131 (1 point each)
3) Extra Credit (EC): The following EC problems are worth 0.5 points each:
1.107, 1.115, 1.136, 1.138, 1.140, 1.141

Please refer to hw01.html for additional information regarding the EC questions.

Note: For all Normal Curve calculations, it will help to draw a sketch first (even if this is not a part of the question) and then solve the question using Table A. It is always a good idea to check your answer by using a Normal Curve applet, e.g., the one that is available in the textbook. Start at http://www.whfreeman.com/ips6e, then select "Statistical Applets", then "Normal Curve".

Alternatively, you can work with Normal Curve applets from http://www.math.usu.edu/~schneit/CTIS/NormalCurve/, http://davidmlane.com/hyperstat/z_table.html, http://stat.wvu.edu/SRS/Modules/Normal/normal.html, to mention only a few.

In general, it is not required to use any of these applets unless the question explicitly asks you to use the Normal Curve applet from the book. However, using any of the applets is a very effective way to check your Normal Curve calculations yourself. Please keep in mind that during all of our exams, you will have to use Table A and you won't have access to any applet - so by then, you should know how to work with Table A only.