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 α = 0.05, 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 doing the following.

(a) Identify the claim and state H₀ and H_a.

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

(c) Find the chi-square test statistic. If convenient, use technology.

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

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

Transcribed Image Text:

Gender Male Female Number of times tried to quit before habit-free 2-3 257 139 4 or more 149 80 271 146