Question

In: Statistics and Probability

Sixty-four students in an introductory college economics class were asked how many credits they had earned...

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. At α = .02, is the degree of certainty independent of credits earned?

Credits Earned Very
Uncertain
Somewhat
Certain
Very
Certain
Row Total
0 – 9 15 9 3 27
10 – 59 7 5 9 21
60 or more 1 8 14 23
Col Total 23 22 26 71


(a) At α = .02, the hypothesis for the given issue is H0: Credits Earned and Certainty of Major are independent.

  • Yes

  • No



(b) Calculate the chi-square test statistic, degrees of freedom, and the p-value. (Round your test statistic value to 2 decimal places and the p-value to 4 decimal places.)

Test statistic
d.f.
p-value


(c) Find the critical value of the chi-square for α = .02. (Round your answer to 2 decimal places.)

Critical value        

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