In a χ2 goodness-of-fit test, the decision to reject H₀ can be interpreted as:
A) all of the proportions stated in the null hypothesis appear to be incorrect.
B) most of the proportions stated in the null hypothesis appear to be incorrect.
C) none of the proportions stated in the null hypothesis appears to be incorrect.
D) at least one of the proportions stated in the null hypothesis appears to be incorrect.

Question

Quizplus · Accepted Answer

In a χ2 goodness-of-fit test, we compare the observed frequencies with the expected frequencies based on the null hypothesis. If the calculated χ2 value is greater than the critical value, we reject the null hypothesis. This means that at least one of the proportions stated in the null hypothesis appears to be incorrect. Therefore, the best choice is D.

In a χ2 Goodness-Of-Fit Test, the Decision to Reject H₀