<PRE><B>Question 198601</B>
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 � = .01, is the degree of certainty independent of credits earned? Certainty
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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Ho: degree of certainty is independent of credits earned
H1: they are dependent
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Run a Chi-Sq test on the 3 by 4 set of data to get:
test statistic: Chi-Sq = 14.76
p-value = 0.0222
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Decision: Since the p-value is greater than 1%, Fail to reject Ho.
The row and column factors are independent.
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Cheers,
Stan H.



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