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Assignment No.4 (Course STA 406)

 Fall 2014 (Total Marks15)

 

Deadline

Your Assignment must be uploaded/ submitted before or on

23:59 February 28, 2015

(STUDENTS ARE STRICTLY DIRECTED TO SUBMIT THEIR ASSIGNMENT BEFORE OR BY DUE DATE. NO ASSIGNMNENT AFTER DUE DATE WILL BE ACCEPTED VIA E.MAIL).

Rules for Marking

It should be clear that your Assignment will not get any credit IF:

  • The Assignment submitted, via email, after due date.
  • The submitted Assignment is not found as MS Word document file.
  • There will be unnecessary, extra or irrelevant material.
  • The Statistical notations/symbols are not well-written i.e., without using MathType software.
  • The Assignment will be copied from handouts, internet or from any other student’s file. Copied material (from handouts, any book or by any website) will be awarded ZERO MARKS. It is PLAGIARISM and an Academic Crime.
  • The medium of the course is English. Assignment in Urdu or Roman languages will not be accepted.
  • Assignment means Comprehensive yet precise accurate details about the given topic quoting different sources (books/articles/websites etc.). Do not rely only on handouts. You can take data/information from different authentic sources (like books, magazines, website etc) BUT express/organize all the collected material in YOUR OWN WORDS. Only then you will get good marks.

 

Objective(s) of this Assignment:

The assignment is being uploaded to build up the concepts about:

  • The hypothesis testing of single variance using Chi-Square distribution
  • Test of independence.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

 

 

                                                                                                                            

 

 

Assignment # 4 (Lessons 8-9)

 

Question 1:                                                                                                                                     (Marks: 8)

The Weight of a random sample of 10 boxes of a particular brand of cereal is 14.2, 13.7, 14.1, 14.3, 14.1, 13.8, 14.4, 14.8, 13.9 and 14.3.  Test the Hypothesis that     at 0.01 level of significance.

 

 

 Question 2:                                                                                                                                    (Marks: 7)

A random sample of 250 men and 250 women were polled as to their desire concerning the ownership of personal computers. The following data resulted:

 

 

 

 

Test the hypothesis that desire to own a personal computer is independent of sex at the 0.05 level of significance.

 

 

-End-

 

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