3. Refer to the data set called CIGARET. Assume that the samples are simple rand

Question

3. Refer to the data set called CIGARET. Assume that the samples are simple random samples obtained from normally distributed populations Construct a 95% confidence interval estimate of the mean amount of nicotine in cigarettes that are king size, non-filtered, non-menthol, and non-light (Column C2). a. Construct a 95% confidence interval estimate of the mean amount of nicotine in cigarettes that are 100mm, filtered, non-menthol, and non-light (Column C). b. O.8137, 1.0183) c. Compare the results. Do filters on cigarettes appear to be effective?

Explanation / Answer

c) Since the two confidence intervals do not overlap and the confidence interval found in b) contains all the values which are less than the lower limit of confidence interval found in a), the filters on cigarettes appear to be effective.

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.