drug is used to help prevent blood clots in certain patients. In clinical trials, among 4742 patients treated with the drug,109 developed the adverse reaction of nausea. Construct a 90% confidence interval for the proportion of adverse reactions a) Find the best point estimate of the population proportion p. b) Identify the value of the margin of error E c) Construct the confidence
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A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4742 patients treated with the drug,109 developed the adverse reaction of nausea. Construct a 90% confidence interval for the proportion of adverse reactions
a) Find the best point estimate of the population proportion p.
b) Identify the value of the margin of error E
c) Construct the confidence interval.
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- A study of 420,048 cell phone users found that 137 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0256% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. enter your response here%<p<enter your response here% (Round to three decimal places as needed.) b. Do cell phone users appear to have a rate of cancer of the brain or nervous system that is different from the rate of such cancer among those not using cell phones? Why or why not? A. No, because 0.0256% is included in the confidence interval. B. Yes, because 0.0256% is included in the confidence interval. C. Yes, because 0.0256% is not included in the confidence interval. D. No, because 0.0256% is not…In a random sample of 250 students who enrolled in Science, 150 took notes duringclasses. Find an approximate 95% confidence interval for the population proportion of students who takes notes in their Science classes.A Gallup poll of 1487 adults showed that 43% of the respondents have Facebook pages. Construct a 95% confidence interval for the proportion of adults who have a Facebook page.
- A study of 420,072 cell phone users found that 135 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0336% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 95% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. D%Use the sample data and confidence level given below to complete parts (a) through (d). A drug is used to help prevent blood clots in certain patients. In clinical trials, among 4273 patients treated with the drug, 117 developed the adverse reaction of nausea. Construct a 90% confidence interval for the proportion of adverse reactions.The local newspaper is conducting a poll about how the residents of the city feel about the traffic during rush hour. Of 666 people polled, 57 responded that they felt that it was manageable or tolerable. Calculate the margin of error in order to find the 95% confidence interval for the proportion of people who feel that the traffic during rush hour is tolerable.A study determined that 60% of women older than age 50 have annual mammograms. A researcher believes that the 60% rate is no longer valid and the proportion should be higher. To see if this proportion is still valid, he surveys 100 women, 75 of whom say they have annual mammograms. if a=0.05, caculate the sample proportion, confidence interval, margin of error, and p value.A random sample of 328 medical doctors showed that 171 had a solo practice. Let p represent the proportion of all medical doctors who have a solo practice. Find a point estimate ?̂ for p, also find a 95% confidence interval for p.A study of 420,073 cell phone users found that 136 of them developed cancer of the brain or nervous system. Prior to this study of cell phone use, the rate of such cancer was found to be 0.0326% for those not using cell phones. Complete parts (a) and (b). a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell phone users who develop cancer of the brain or nervous system. D%A survey of 240 teachers found that two-thirds of those surveyed do not live in Sydney. Can you conclude statistically that the population proportion who do not live in Sydney is less than 0.75? Use a 95% confidence interval. What is the confidence interval and is 0.75 within the interval?A study is conducted by a physical therapist to determine whether there is a difference in the proportion of men and women in the U.S. that participate in regular sustained physical activity. It is found that 22% of menout of 550 and 19.5% of women out of 450 participated in regular sustained physical activity. Construct a 90% confidence interval for the difference in proportions of men and women that participate in regular sustained and state your conclusion.A study would like to investigate the risk of lung cancer in url. area and rural area. Assume the proportion of urban residents with lung cancer is p1, and the proportion of rural area residents with lung cancer is p2. If it is found that 20 of 200 adults in an urban community have lung cancer and 10 of 150 adults in the rural community have lung cancer. Find the 95% confidence interval for the difference in the proportions. Would you conclude that p1 is greater than p2? Select all correct answers. O "O" is not in the interval (C.I) O Yes, we can conclude p1 is greater than p2. O "0.1" is in the interval (C.I) O "O" is in the interval (C.I) Not enough information is given. O (-0.02431, 0.090972) O (21.48721, 22.90809) O No, we can't conclude p1 is greater than p2. O "0.1" is not in the interval (C.I) (-1.21908, 2.64790) O (-19.20998, -17.21458) Previous hpSEE MORE QUESTIONSRecommended textbooks for youMATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons Inc
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