Question: Following are data for a chi-square test for independence. Observed Accidents No Accidents Rain 19 26 45 No rain 20 71 91 39 97 136

Following are data for a chi-square test for independence.

Observed Accidents No Accidents Rain 19 26 45 No rain 20 71 91 39 97 136

a. Calculate the degrees of freedom for this test.

b. Complete this table of expected frequencies.

Expected Accidents No Accidents Rain No rain

c. Calculate the test statistic.

d. Calculate the appropriate measure of effect size.

e. Calculate the relative likelihood of accidents, given that it is raining.

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