Example 3. Some people seem to believe that you can fix anything with duct tape. Even so, many wereskeptical when researchers announced that duct tape may be a more effective and less painfulalternative to liquid nitrogen, which doctors routinely use to freeze warts. A 2002 article described astudy conducted at Madigan Army Medical Center. A sample of 204 patients with warts were randomlyassigned to either the duct tape treatment or the more traditional freezing treatment. The 104 in theduct tape group wore duct tape over the wart for 6 days, then removed the tape, soaked the area inwater, and used an emery board to scrape the area. This process was repeated for a maximum of 2months or until the wart was gone. Data consistent with values in the article are as follows:Number with WartnSuccessfully RemovedLiquid nitrogen freezing10060Duct tape10488Do the data give statistical evidence that duct tape works better than freezing? Exercise 3. Revisit Example 3. Our goal is to assess whether the data give statistical evidence that duct tapeworks better than freezing.(a) Carefully describe the inference target. Hint: It will be the difference of two probabilities. Describe theseprobabilities as, for example, p1 = PRe, ("success"), where "success“ is . and RE, is.(b) Compute and interpret a 95% confidence interval for the inference target.(c) Carry out a test at level 0.001 of the relevant hypotheses. Include a PV report.

Given : n1 = 100 x1 = 60 n2 = 104 x2 = 88

Answered: Example 3. Some people seem to believe…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Philosophical and health issues are prompting an increasing number of Taiwanese to switch to a vegetarian lifestyle. A study published in the Journal of Nutrition compared the daily intake of nutrients by vegetarians and omnivores living in Taiwan. Among the nutrients considered was protein. Too little protein stunts growth and interferes with all bodily functions; too much protein puts a strain on the kidneys, can cause diarrhea and dehydration, and can leach calcium from bones and teeth. Independent random samples of 51 female vegetarians and 53 female omnivores yielded the following summary statistics, in grams, on daily protein intake. Vegetarians: X₁ = 39.04, s₁ = 18.82, n₁ = 51 Omnivores: X₂ = 49.92, S₂: 18.97, n₂ = 53 a. Do the data provide sufficient evidence to conclude that the mean daily protein intakes of female vegetarians and female omnivores differ? Perform the required hypothesis test at the 1% significance level. Assume equality of variances. b. Determine a 99%…

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