None A certain drug is meant to reduce cholesterol and LDL cholesterol. Researchers selected 878 patients at random among those who take this widely-used prescription drug daily. In a clinical trial, 25 out of the 878patients complained of flulike symptoms. Suppose that it is known that 2.4% of patients taking competing drugs complain of flulike symptoms. Is there sufficient evidence to conclude that more than 2.4% ofthis drug's users experience flulike symptoms as a side effect at the a=0.05 level of significance?Because npo (1-Po) = 20.6 >10, the sample size isless than 5% of the population size, and the patients in the samplewereselected at random, all of the requirements for testing the hypothesisabout the population proportion are satisfied(Round to one decimal place as needed.)What are the null and alternative hypotheses?Ho P = 0.024 versus H₁: p > 0.024(Type integers or decimals. Do not round.)Find the test statistic, ZoZo(Round to two decimal places as needed.)

Step 1: Assume that p is the population proportion of drug users who experienced flulike symptoms as…

Answered: A certain drug is meant to reduce…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Similar questions

What is an experiment?
List the sample space of each experiment. Tossing three coins
List the sample space of each experiment. Picking a one-digit number
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?
A study is designed to test whether there is a difference in mean daily calcium intake in adults with normal bone density, adults with osteopenia (a low bone density which may lead to osteoporosis) and adults with osteoporosis. Adults 60 years of age with normal bone density, osteopenia and osteoporosis are selected at random from hospital records and invited to participate in the study. Each participant's daily calcium intake is measured based on reported food intake and supplements. The data are shown below. Is there a statistically significant difference in mean calcium intake in patients with normal bone density as compared to patients with osteopenia and osteoporosis?
The Human Society of South Africa reports that there are approximately 77.5 million dogs owned in South Africa and that approximately 40% of all South African households own at least one dog. In a random sample of 300 households, 114 households said that they owned at least one dog. Suppose you must test the hypothesis at 5% level of significance that the data provide sufficient evidence to indicate that the proportion of households with at least one dog is different from that reported by the Human Society of South Africa. 1. Determine (I) the alternative hypothesis to be tested: (ii) the value of test statistic: (iii) the p-value for this problem and the conclusion.
In 1990, 58% of Americans 18 years old and older reported they have a great deal of concern regarding air pollution. A recent poll found that 592 of 1004 Americans 18 years old or older stated that they have a great deal of concern regarding the level of air pollution in American. Is there evidence to conclude that the current proportion of Americans having a great deal of concern about the level of air pollution in America is different from the 1990 proportion, with a 10% level of significance? State the null hypothesis, alternative hypothesis, test statistic, p-value and conclusion.
The General Social Survey (GSS) found that 571 out of 670 (85%) Americansanswered the question on experimental design correctly. Do these data provideconvincing evidence that more than 80% of Americans have a good intuitionabout experimental design?
6. Binge-watching a television show might not be the best way to enjoy a television series (Horvath et al., 2017). Participants in an experiment were in a group that either watched an entire tv series during daily one-hour sessions or watched all the episodes during a single binge session. Participants were asked to rate their enjoyment of the t.v. series on a scale of 0-100. Data like those observed by the author are listed below: Binge-watched 87 Daily-watched 84 71 100 73 87 86 97 78 92 a. Is there a difference in the level of enjoyment based on whether the series was binge-watched or watched on a daily basis? Use a two-tailed test at the a = 0.05 level of significance? b. Do the data analysis in SPSS in addition to your hand calculations. Attach a printout of your results.
An article claimed that "those with a college degree reported a higher incidence of sunburn than those without a high school degree—45 percent versus 26 percent." For purposes of this exercise, suppose that these percentages were based on random samples of size 200 from each of the two groups of interest (college graduates and those without a high school degree). Is there convincing evidence that the proportion who experience a sunburn is higher for college graduates than it is for those without a high school degree? (Use pcollege graduates − pwithout a high school degree. Round your test statistic to two decimal places and your P-value to four decimal places.) z = P =
In an article about unusual allergies, a doctor explained that allergy to sulfites is usually seen in patients with asthma. The typical reaction is a sudden increase in asthma symptoms after eating a food containing sulfites. Studies are performed to estimate the percentage of the nation's 10 million asthmatics who are allergic to sulfites. In one survey, 32 of 400 randomly selected asthmatics in the country were found to be allergic to sulfites. Find and interpret a 90% confidence interval for the proportion, p, of all asthmatics in the country who are allergic to sulfites. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. to The 90% confidence interval is from (Round to three decimal places as needed.)
In an article about unusual allergies, a doctor explained that allergy to sulfites is usually seen in patients with asthma. The typical reaction is a sudden increase in asthma symptoms after eating a food containing sulfites. Studies are performed to estimate the percentage of the nation's 10 million asthmatics who are allergic to sulfites. In one survey, 39 of 600 randomly selected asthmatics in the country were found to be allergic to sulfites. Find and interpret a 95% confidence interval for the proportion, p, of all asthmatics in the country who are allergic to sulfites. Click here to view page 1 of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. to The 95% confidence interval is from (Round to three decimal places as needed.) Interpret the confidence interval. Choose the correct answer below. O A. There is a 95% probability that the sample proportion of all asthmatics in the country who are…

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