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Assignment No.2 (Course STA 406)

 Fall 2014 (Total Marks15)

 

Deadline

Your Assignment must be uploaded/ submitted before or on

23:59 December 15, 2014

(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 emailafter 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 AcademicCrime.
  • 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 confidence interval and hypothesis testing.

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

 

 

 

 

 

Assignment # 2 (Lessons 3- 4)

 

Question 1:                                                                                                                                                   (Marks: 7)

A sample of 15 measurements of the breaking strength of iron pipes gave a mean  grams and a standard deviation s =35 grams. Find 99% confidence interval for the actual mean breaking strength.

 

 Question 2:                                                                                                                                   (Marks: 8)

A random sample of 100 workers with children in day care, show a mean day-care cost of Rs.2750 and a standard deviation of Rs.500. Verify the department’s claim that the mean exceeds Rs.2600 at .

 

 

 

-End- 

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