This module provides a lab on Chi-Square Distribution as a part of Collaborative Statistics collection (col10522) by Barbara Illowsky and Susan Dean. Labs changed to incorporate mini-tabs.
Class Time:
Name:
Student learning outcome:
The student will evaluate if there is a significant relationship between favorite type of snack and gender.
Collect the data
Using your class as a sample, complete the following chart.
Favorite type of snack
sweets (candy&baked goods)
ice cream
chips&pretzels
fruits&vegetables
Total
male
female
Total
Looking at the above chart, does it appear to you that there is dependence between gender and favorite type of snack food? Why or why not?
Determine the classification
Conduct a hypothesis test to determine if the factors are independent
:
:
What distribution should you use for a hypothesis test?
Why did you choose this distribution?
Calculate the test statistic.
Find the
p-value.
Sketch a graph of the situation. Label and scale the x-axis. Shade the area corresponding to the
p-value.
State your decision.
State your conclusion in a complete sentence.
Discussion questions
Is the conclusion of your study the same as or different from your answer to (I2) above?
