A woman who smokers during pregnancy increase health risks to the infant so that it is...

A woman who smokers during pregnancy increase health risks to the infant so that it is known that about 20% (1/5) of female smokers quit smoking during pregnancy. Suppose that a random sample of 400 pregnant women who smoked prior to pregnancy contained 62 who quit smoking during pregnancy. (please, show all work and TI-84 plus steps for comparison)

a. What is the point estimator for p, the population of female smokers who quit smoking during pregnancy?

b. What are the assumptions (requirements) for constructing a confidence interval for p?

c. Compute the 95 % confidence interval for p.

d. Find the margin of error from part c.

e. Interpret the confidence interval you found in part c.

f. Does the result from c) agree with the claim saying, “about 20% (1/5) of female smokers quit smoking during pregnancy”?

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orchestra answered 1 year ago

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