Question

You will perform a Chi-Square test and an ANOVA test. For each hypothesis test make sure to report the following steps:

Identify the null hypothesis, Ho, and the alternative hypothesis, Ha.

Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.

Find the critical value(s) and identify the rejection region(s).

Find the appropriate standardized test statistic. If convenient, use technology.

Decide whether to reject or fail to reject the null hypothesis.

Interpret the decision in the context of the original claim.

1. A researcher wants to determine whether the time spent online per day is related to gender. A random sample of 315 adults was selected and the results are shown below. Test the hypothesis that the time spent online per day is related to gender. Use α = 0.05.

Resource: The Chi-Square, Independence

Gender	Time spent online per day (minutes)
	0-30	30-60	60-90	90+
Male	25	35	75	45
Female	30	45	45	15

2. A researcher wishes to determine whether there is a difference in the average age of elementary school, high school, and community college teachers. Teachers are randomly selected from each group. Their ages are recorded below. Test the claim that at least one mean is different from the others. Use α = 0.01.
Resource: The One-Way ANOVA

Elementary School Teachers	High School Teachers	Community College Teachers
23 28 27 25 52 37	41 36 38 47 42 31	39 45 36 61 45 35

Answer 1

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