Question 285742
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. 
Research question: At α = .01, is the degree of certainty independent of credits earned? Certainty 
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Ho: certainty and credits are independent
Ha: they are dependent
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Credits Earned Very Uncertain Somewhat Certain Very Certain Row Total 
0–9 12 8 3 23 
10–59 8 4 10 22 
60 or more 1 7 11 19 
Col Total 21 19 24 64
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I ran a Chi-Sq Test on the 3 x 3 data set to get:
Chi-Sq = 14.7638...
p-value = 0.00522...
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Conclusion: Since P-value is less than 1%, Reject Ho.
Certainty and credits are dependent
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Cheers,
Stan H.