(a) Identify the claim and state Ho and Ha .

(b) Determine the degrees of freedom, find the critical value, and identify the rejection region.

The degrees of freedom for a chi-square test of independence are

d.f. =( r-1) left parenthesis c minus 1 right parenthesis

(c) Calculate the test statistic. chi-square

(d) Decide whether to reject or fail to reject the null hypothesis.

(e) Interpret the decision in the context of the original claim.

Treatment The contingency table shows the results of a random Result sample of patients with pain from musculoskeletal Acetaminophen Ibuprofen injuries treated with acetaminophen or ibuprofen. At Significant 56 improvement 79 = 0.01, can you conclude that the treatment is related to the result? Complete parts (a) through (e) below. Slight 40 improvement 21 Ho: The result is independent of the type of treatment. He: The result is dependent on the type of treatment. Which hypothesis is the claim? Alternative hypothesis O Null hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. d.f. = (Type a whole number)