The following data represent the smoking status from a random sample of 1054 U.S. residents 18 years or older by level of education.

(a) Test whether smoking status and level of education are independent at the α = 0.05 level of significance.
(b) Construct a conditional distribution of smoking status by number of years of education, and draw a bar graph. Does this evidence support your conclusion in part (a)?

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Smoking Status Number of Years of Education Current Former Never <12 178 88 208 12 137 69 143 25 13-15 44 44 16 or more 34 33 51