A report in 2002 found that 21.1% of American adults smoked cigarettes. The town of San...

A report in 2002 found that 21.1% of American adults smoked cigarettes. The town of San Sebastian spent five years focusing on educating their population on the health risks associated with smoking cigarettes, and at the conclusion of this five-year campaign, a study of 1200 participants found that 17.1% of the respondents were current smokers. Is this evidence enough that the public-health campaign has lowered the proportion of smokers in San Sebastian? Use α = 0.02 (Show all steps please)

a)State the null and alternative hypothesis (H0 and Ha). H0: Ha:

b) What is the test statistic for this sample (use at least 3 decimal places)?

c) What is the p-value for this sample? (use Statcrunch)

d)Evaluate the strength of the evidence and state the conclusion (in the context of this question).

Solutions

Expert Solution

Let p denotes the true proportion of smokers in San Sebastian in recent times.

There is enough evidence to support the claim that the public-health campaign has lowered the proportion of smokers in San Sebastian.

orchestra answered 1 year ago

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