Question 130868: I am having problem understanding this question. Please help me.
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?
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
Please help me. I need our help desperately.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 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 alpha = .01, is the degree of certainty independent of credits earned?
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
-----------------------------------
Ho: degree of certainty is independent of credits earned
Ha: they are dependent
I ran a Chi-Sq. Test on the data to get:
Critical values:
Test statistic = 14.7638...
p-value = 0.00521...
Conclusion: Since p-value is less than 1% reject Ho
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Cheers,
Stan H.
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