NATS 1500 2017W/Individual Assignment 8

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Deadline: Wednesday March 22, 11 pm
Weight: 3 regular individual assignments
Hand in through Moodle as one PDF file. If you can't submit a PDF file, submit one Word file.
Questions are referred to by chapter and question number, e.g. 7.32 is question 32 in chapter 7. No page numbers are given because the questions appear on different pages in different printings of the textbook. The questions are collected together at the end of each chapter.

Each question is worth 4 marks except for 5.50 and 6.53 which are worth 16 and 12 marks respectively. Total possible marks on the assignment are 100.

  • Chapter 4:
    • 4.9
    • 4.10
    • 4.17
    • 4.34
    • 4.54
    • 4.81
  • Chapter 5:
    • 5.13
    • 5.26
    • 5.26
    • 5.29
    • 5.43
    • 5.50 (worth 4 questions)
      Before doing each part, a to d, in the textbook, find the overall regression equation, the equation for hardcover books and the equation for softcover books using the partially computed quantities below.
group Σ(pagesi) Σ(pricei) \Sigma (pages_i - \overline{pages})^2 \Sigma (price_i - \overline{price})^2 \Sigma (pages_i - \overline{pages})(price_i - \overline{price})
All 5,465.00 425.73 221,123.33 8,894.03 -13,841.42
Hard 2,459.00 387.45 126,193.88 2,000.59 5,536.11
Soft 3,006.00 38.28 39,313.71 2.48 199.13
  • Chapter 6:
    • 6.6
    • 6.9
    • 6.21
    • 6.22
    • 6.24
    • 6.42
    • 6.43
    • 6.53 (worth 3 questions)
      Also draw the Paik-Agresti diagram for this data