(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.

The contingency table shows the results of a random sample of former smokers by the number of times they tried to quit smoking before they were habit-free and gender. At = 0.01, can you conclude that the number of times they tried to quit before they were habit-free is related to gender? Perform the indicated chi-square independence test by completing parts (a) through (e) below. Number of times tried to quit before habit-free Gender 1 2-3 4 or more Male 270 255 148 Female 144 139 82 Which hypothesis is the claim? A O Null hypothesis Alternative hypothesis (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. Calculate the degrees of freedom. d.f. = 2 Find the critical value. 2 XO (Round to three decimal places as needed.)