# Question

Recall that the number of degrees of freedom for the t-distribution used in a one-mean t-test depends on the sample size. Is that true for the chi-square distribution used in a chisquare

a. Goodness-of-fit test?

b. Independence test?

c. Homogeneity test? Explain your answers.

a. Goodness-of-fit test?

b. Independence test?

c. Homogeneity test? Explain your answers.

## Answer to relevant Questions

Explain why a chi-square goodness-of-fit test, a chi-square independence test, or a chi-square homogeneity test is always right tailed. For an F-curve with df = (6, 10), find a. F0.05. b. F0.01. c. F0.025. Discuss two methods for checking the assumptions of normal populations and equal standard deviations for a one-way ANOVA. We stated earlier that a one-way ANOVA test is always right tailed because the null hypothesis is rejected only when the test statistic, F, is too large. Why is the null hypothesis rejected only when F is too large? a. Compute SST, SSTR, and SSE by using the computing formulas given in Formula 13.1 b. Compare your results in part (a) for SSTR and SSE with those in Exercises 13.24–13.29, where you employed the defining formulas. c. ...Post your question

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