spring2008stat201-hw07KEY

# spring2008stat201-hw07KEY - 36-201 Spring 2008 Homework 7...

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This document available on: http://www.stat.cmu.edu/~gordonw/spring2008stat201.html 36-201 Spring 2008 Homework 7 – KEY

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Stat 201 Spring 2008 Page 1 of 7 Homework 7 – GRADING KEY This document available on: http://www.stat.cmu.edu/~gordonw/spring2008stat201.html Due: Wednesday, March 5 , at the beginning of lecture. Homework considered late beyond the first 10 minutes of lecture. Late Homework Policy: Late homework may be turned-in for a maximum of half credit, up to 4:00 PM on the same Wednesday the homework is due. Late homework should be placed in the manila envelope which will be posted by room 328-C, Facilities Management Building (FMS). Late homework should be labeled with the course as well as your name. Please do not turn in any homework to any mailboxes. Please include the top-page ‘coversheet’, filled-out and stapled to your homework. Show all work. This homework covers section 6.2 in the course textbook. Point Distribution: Exercise 1 Exercise 2 Exercise 3 effort & neatness TOTAL 32 11 37 20 100 NOTE: To save paper, you are encouraged to print double-sided (‘duplex’ mode). 1. (Normal Distribution fundamentals) For each of the following, use the Standard Normal Distribution Table (‘Table A’ in the appendix of the book, and also available on the instructor’s web page) as appropriate:
Stat 201 Spring 2008 Page 2 of 7 Homework 7 – GRADING KEY This document available on: http://www.stat.cmu.edu/~gordonw/spring2008stat201.html 1 (a) Find the probability of an observation on the Standard Normal Distribution satisfying: 38 . - < Z ; include a sketch, with the axis appropriately labeled, the mean appropriately marked, the position in question appropriately labeled, and the appropriate area shaded and labeled. Solution:

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spring2008stat201-hw07KEY - 36-201 Spring 2008 Homework 7...

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