SOLUTION: 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. Resea
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Question 178207: 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?
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
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 α = .01, is the degree of certainty independent of credits earned?
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: the row and the column factor are independent
Ha: they are dependent
---------------
I ran a Chi-Sq test on the 3 x 4 matrix of values to find
Test statistic : 21.9643
----
The p-value is 0.0002037...
------------------
Conclusion: Since p-value is less than 1%, reject Ho.
==================
Cheers,
Stan H.
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