Chi-square tests and statistical significance

Week 14: November 24

MATH 317/ELMA 517 ~ Probability and Statistics for Teachers ~ Fall 2003

Class meeting schedule and topics

Monday, November 24 ~	Chi-square tests and graduate student presentations
Monday, December 1 ~	Review for the final exam, statistical significance, and graduate student presentations
Monday, December 8 ~	Final examination

Homework Assignments

13. Due Monday, December 1

    Required work

    1. Compute the chi-square statistic for the "Age Discrimination" data that appeared on the Midsemester Exam (or see the Web site: http://www.math.iup.edu/~tshort/handouts/age_discrimination.html).

       Discuss how the value of the chi-square statistic indicates whether or not age discrimination occurred.

    Optional work

    • Repeat part (a) for a different two-by-two table of counts.

14. Due Monday, December 8

    Required work

    1. Visit the "Simulating Probability Situations using Box Models" page at the NCTM Illuminations Web site (http://illuminations.nctm.org/imath/6-8/BoxModel/student/index.html).

    2. Follow the directions under the heading "Sample Activity: Flipping a Coin." Write down your answers to the questions given in the bulleted list.

    3. Try the box model simulation at the bottom of the page, and write down your answer to the request "Describe and explain any patterns you see."

    Optional work

    • Explore alternative situations in the "Box Model" simulation. For example, can you simulate the rolls of a fair six-sided die?