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Chi-square test on college credits

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Observed frequencies
Credits Earned Very Uncertain Somewhat Certain Very Certain Row Total
0-9 12 8 3 23
10-59 8 4 9 21
60 or more 1 7 12 20
Col Total 21 19 24 64

Step 1: State the null and alternate hypotheses

H₀: Degree of certainty is independent of credits earned
H₁: Degree of certainty is not independent of credit earned

Step 2: Select a level of significance

α = 0.02

Step 3: Identify the test statistic and state its formula

Step 4: Formulate a decision rule

Step 5: Make a decision

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The expert examines chi-square tests on college credits.

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