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?
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
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? Certainty
------------------
Ho: certainty and credits are independent
Ha: they are dependent
--------------
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
---------------
I ran a Chi-Sq Test on the 3 x 3 data set to get:
Chi-Sq = 14.7638...
p-value = 0.00522...
---------------
Conclusion: Since P-value is less than 1%, Reject Ho.
Certainty and credits are dependent
==============================
Cheers,
Stan H.
|
|
|
