A survey was conducted to study if parental smoking is associated with the incidence of smoking...

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A survey was conducted to study if parental smoking isassociated with the incidence of smoking in children when theyreach high school. Randomly chosen high school students were askedwhether they smoked and whether at least one of their parentssmoked.

The results are summarized in the following table:

Student Smoke Student Don’t

Parents Smoke 262 183

Parents Don’t 120 380

(a) For a randomly selected student in this study, find theconditional probability of smoking given his/her parents smoke.

(b) Suppose we are interested in testing whether parentalsmoking is independent of children smoking. Which statistical testwould you consider for this problem?

(c) (4 points) Write down the R code to carry out that test. Youfirst need to store the data into a matrix.

(d) Calculate the test statistic by yourself.

(e) Write down the R code to obtain the p-value based on youranswer in
part(d).
(f) Suppose the p-value is 0.0001, what would be your really worldconclusion? (You may use α = 0:05.)

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A survey was conducted to study if parental smoking is associated with the incidence of smoking in children when they reach high school Randomly chosen high    See Answer
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