Hyperhidrosis is a stressful medical condition characterized by chronic excessive sweating. Botox wasapproved for treatment of hyperhidrosis in adults in 2004. A clinical trial examined the effectiveness ofBotox for excessive armpit sweating in teenagers aged 12 to 17 years. Participants received either a Botoxinjection or a placebo injection (a simple saline solution) and were examined four weeks later to see iftheir sweating had been reduced. Here are the study's findings:BotoxPlaceboTotalReducedConfidence Interval:7252124Not Reduced28We are 95% confident that there ishyperhidrosis who experienced a reduction in sweating.148176Total100200-Construct a 95% confidence interval for p₁ - P2 where p₁ denotes the proportion of teenagers whoexperienced a reduction in sweating in the Botox group and p2 denotes the proportion of teenagers whoexperienced a reduction in sweating in the placebo group. Round your answers to three decimal places,and use four decimal places for any interim calculations.300a difference in the proportion of teenagers with

The objective is to construct a 95% confidence interval for the difference between proportions i.e.,…

Answered: Hyperhidrosis is a stressful medical…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 11PPS

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What is an experiment?
A pharmaceutical company is testing a new drug for a rare disease. In a clinical trial, 1000 patients with the disease were randomly assigned to receive either the new drug or a placebo. After one year, it was found that 60% of the patients who received the new drug experienced improvement, compared to only 40% of those who received the placebo. Is the difference in improvement rates statistically significant? Provide your rationale.
In an observational study it was found that people who had received the flu shot this year had better blood pressure readings, on average, than people who did not. Can it be claimed that the flu shot is the cause of the lower overall blood pressure? Why or why not?
The dose-response effect is best described as A. when similar studies produce similar results B. when all other possible causes are ruled out. C. when the value of the response variable changes in a meaningful way with the dosage of the suspected cause.
A group of disabled women ages 65 and older were followed for several years. It was found that those who had a vitamin B12 deficiency were twice as likely to suffer from severe depressions than those who did not.a. Describe the type of study being performed.b. Describe the explanatory variable(s) and response variable(s).
A recent study on the effects of Tamiflu looked into whether the antiviral medication can reduce the duration of the flu or not. To test this, researchers selected sample of 42 individuals recently diagnosed with the flu. Twenty-one of these individuals were given a placebo, and their average flu durations was 12.6 days (SD = 1.88). The remaining 21 subjects were given Tamiflu, and their average flu duration was 11.4 days (SD = 1.58). Did Tamiflu make reduce the duration of the flu? What is the effect size for this difference? state the null and alternavive hypthesis, aplha level of 0.05 please text the null hypthesis and draw the rejction region
Researchers studied 208 infants whose brains were temporarily deprived of oxygen due to complications at birth. When researchers detected oxygen deprivation, they randomly assigned babies to either usual care or to a whole-body cooling group. The goal was to see whether reducing body temperature for three days after birth increased the rate of survival without brain damage. What is the explanatory variable? A. Survival without brain damage B.Infants whose brains are temporarily deprived of oxygen C. Usual care or whole-body cooling
Recall that small effects may be statistically significant if the samples are large. A study of small-business failures looked at 153 food-and-drink businesses. Of these, 107 were headed by men and 46 were headed by women. During a three-year period, 17 of the men's businesses and 7 of the women's businesses failed. (a) Find the proportions of failures for businesses headed by men (sample 1) and businesses headed by women (sample 2). These sample proportions are quite close to each other. p̂men = p̂women = Give the P-value for the z test of the hypothesis that the same proportion of women's and men's businesses fail. (Use the two-sided alternative.) The test is very far from being significant. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value = (b) Now suppose that the same sample proportions came from a sample of 30 times as large. That is, 210 out of 1380 business headed by women and 510 out of 3210 businesses…

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