STAT220: Basic Statistics: Winter Quarter 2007

Homework assignments

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All homeworks listed here are PROVISIONAL until 12.00 noon, on the Thursday one week before the homework is due in your quiz section.
Only NECESSARY changes will be made after this noon deadline.
If such necessary late changes are made, anouncements will be made in the MWF Class, and also on the class web page.

Homework 1: due Thursday, Jan 11, 2007
FPP Pp, 24-26. Nos. 1,7 (Ch 2) and Pp 351-353, Nos 1,2,5 (Ch 19)
On P.351. No.2, ignore the words "to see", which are misleading.
In the second survey, interviewers ask what brand is being used.
Remember to justify ALL your answers.

Homework 2: due Thursday, Jan 18, 2007
FPP (Chapter 3) P. 34 No. 7, P. 44. No. 1, Pp. 51-53, Nos. 4,7,9
(Note the first two of these are NOT ``Review Exercises'')
Remember to justify ALL your answers.

Homework 3: due Thursday, Jan 25, 2007
FPP (Chapter 4) Pp 74-77, Nos. 2, 3, 6, 8, 9.
In 8(b): "Estimate" means give a sensible guess.
Remember to justify ALL your answers.

Homework 4: due Thursday, Feb 1, 2007
This is a regular homework; it will be graded in the usual way.
This material will be covered in the midterm on Feb 2.
Therefore this homework contains only exercises for which the answers are available in the book.
FPP: Chapter 5: Set C (P.88) No. 2; Set E (P.92) No. 3;
and Chapter 8: Set A (P.124) No. 6; Set B (P. 128) Nos 1,2;
In these chapter 8 questions: ``correlation'' means same as ``association''.
Remember to justify ALL your answers.

Homework 5: due Thursday, Feb 8, 2007
FPP (Chapter 5) REVIEW EXERCISES, P. 95, No. 7.
FPP (Chapter 8) REVIEW EXERCISES, P. 136-137; Nos 7, 8.
FPP (Chapter 9) REVIEW EXERCISES P.153-156, Nos 2, 10.
Remember to justify ALL your answers.

Homework 6: due Thursday, Feb 15, 2007
FPP (Chapter 10) REVIEW EXERCISES, P. 176-177; Nos 4, 7, 9.
FPP (Chapter 11) REVIEW EXERCISES P.198-199, Nos 4, 5.
Remember to justify ALL your answers.

Homework 7: Due Thursday, Feb 22, 2007
FPP (Chapter 16) REVIEW EXERCISES. P.285-6, Nos 1,4,7;
FPP (Chapter 18) REVIEW EXERCISES. P. 328 Nos 7, 8.
Remember to justify ALL your answers.

Homework 8: due Thursday, Mar 1, 2007
FPP (Chapter 17) REVIEW EXERCISES. P. 304-5 Nos. 1, 4
(In No. 1, the average of the box is 7 and the SD is 3)
FPP (Chapter 20) REVIEW EXERCISES. P. 372-3 Nos. 5, 11, 12
(In No. 5, a ton is 2000 pounds)
Remember to justify ALL your answers.

Homework 9: due Thursday, Mar 8, 2007
FPP (Chapter 21, Set C) P. 387 No. 5 ; Review Exx. P. 392 No 4(a)
FPP (Chapter 23, Set B) P. 421 No. 6
FPP (Chapter 26, Set E) P. 489 No. 10, (Chapter 27 Set B): P.510 No 6(a).
Note that, in hypothesis testing FPP talks about having an extreme z-score in one direction, but we talk about having a deviation in EITHER direction. However, for these two exercises it makes little difference.
Note also that all of these except P.392 have solutions provided, so you can check your answers.
Just the same, remember to justify ALL your answers.