Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major. Use á = .01
RQ: Is the degree of certainty independent of credits earned?
Fill in the Green cells in the attached worksheet.
Credits Earned Very Uncertain Somewhat Certain Very Certain
0-9 12 8 3
10-59 8 4 10
60 or more 1 7 11
Check that the total = 64
A. Choose the Hypothesis
B. Specify the Decision Rule
C. Calculate the Test Statistic
D. Make the Decision. Are the Chi-Square assumptions met?
E. Give an interpretation of the Decision
F. P-value Method
1. Calculate the P-value, what is it?
2. Does that P-value support the Decision in Part D?
Chi square test from the book Applied Statistics in Business and Economics by David P Doane and Lori E. Seward