There were 254.8 per 100,000 per year Myocardial deaths in the aspirin group compared with 439.7 per 100,000 per year in the placebo group. How many participants need to be treated with aspirin for 1 year to result in one (1) fewer myocardial death. Show calculations.
Q: dermatologist compared a new treatment for athlete’s foot (the experimental condition) to the…
A: Given : n = 30 Mexperimental = 88 Mcontrol = 72 Standard deviation = 8.65 Null hypothesis : H0 :…
Q: Brink studied the effect of postural change on cardiovascular reactivity for a sample of healthy…
A:
Q: 2. Using the data (HERE), to develop a model that establishes a relationship between the sales…
A: Since multiple parts are posted , first part is answered in detail. kindly repost for more help.
Q: Some commercial airplanes recirculate approximately 50% of the cabin air in order to increase fuel…
A: Considering the two sample proportions are indifferent, under the H0, the test statistic,…
Q: How long it takes paint to dry can have an impact on the production capacity of a business. An auto…
A: Testing of Hypothesis: H0: μ1=μ2=μ3=μ4 H1: Not all the population means are equal.
Q: How long it takes paint to dry can have an impact on the production capacity of a business. An auto…
A: For the given data Perform Anova: Single Factor
Q: A cigarette manufacturer claims that one-eighth of the US adult population smokes cigarettes. In a…
A: Given: P = 18 = 0.125 n = 100 X = 5 α = 0.05 Formula Used: Test-statistic Z = p-PP(1-P)n
Q: Some commercial airplanes recirculate approximately 50% of the cabin air in order to increase fuel…
A: Given that the sample size is n=1104. Number of passengers who flew on planes that did not…
Q: The mango is considered the "king of fruits" in many parts of the world. Mangoes are generally…
A: Given that in this experiment the fruit was harvested at 80, 95 and 110 days after the fruit set and…
Q: A reader wrote in to the opinion column of a sports magazine to say that his grandfather told him…
A: From the given information, the claim is the proportion of the winning team scores more runs in one…
Q: The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For…
A: We have to find we can support claim or not.
Q: The energy storage system is an important part of any electric car. An electric car company has…
A:
Q: What is the cumulative incidence (CI) for meningitis among those individuals who the medication was…
A: Given, Total number of patients given medication n(total) = 15051 Number of patients contracted…
Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…
A:
Q: The accompanying table shows the percentage of people with 2 dosage of Covid vaccine administered.…
A: Given data:
Q: Patients immobilized for a substantial amount of time can develop deep vein thrombosis (DVT), a…
A: The total number of immobilized patients who are given a placebo is 1473.The number of patients who…
Q: A study of 420,002 to cell phone users found that 133 of them develop cancer of the brain and…
A:
Q: Soon after the pandemic hit, some retailers (e.g. Trader Joe's) limited the number of customers that…
A: X be the waiting time for customers lined up outside one of these retailer. X follows Normal…
Q: Choose the appropriate statistical probability notation for the sentence. If a person does not carry…
A: The conditional probability of P(A/B) can be inferred as, the likelihood of event A, whereas event B…
Q: Hypoglycemia is the most common serious side effect of insulin. It occurs in approximately 16 % of…
A: In this case, each of the considered Type II diabetic patients has the only options of being…
Q: You are part of a research team in the newly formed University of California Center for Climate,…
A: If you are interested to construct the confidence interval about the true average, the formula for…
Q: Some commercial airplanes recirculate approximately 50% of the cabin air in order to increase fuel…
A: H0: pdo not recirculate − pdo recirculate = 0 H1:pdo not recirculate − pdo recirculate≠0
Q: How long it takes paint to dry can have an impact on the production capacity of a business. An auto…
A: The question is about ANOVA.Given :To find :Test that mean drying time is same for each type of…
Q: Doritos chips are one of the most popular chips in the year 2020. Frito-Lay produces snack-sized…
A: Solution: Given information: n=500 Sample size x= 1.59 ounces Sample mean s= 0.12 ounces Sample…
Q: The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day.…
A: Given information Sample mean x̅ = 12.7 mg/day Population mean µ = 15 mg/day Sample size = 115…
Q: Dr. Payne is studying the number of davs patients stav in Armadillo Community Hospital after a…
A: Introduction: Denote the random variable X as the number of days of hospital stay after the surgical…
Q: Since the level of significance is 0.10 the critical value is 1.282 The test statistic is: (round to…
A: It is given that Population proportion, p = 0.6922 Favourable cases, X = 46 Sample size, n = 71…
Q: DM Group The provided boxplots compare the improvement scores for the 40 children in each group. Use…
A: It is an important part of statistics. It is widely used.
Q: 1,000 people are enrolled in a 10-year cohort study. At the start of the study, 100 have diagnosed…
A: From the provided information, it is observed that 1,000 people are enrolled in a 10-year cohort…
Q: People who get angry easily tend to have more heart disease. That is the conclusion of a study that…
A: Given the data on people who get angry easily and tend to have heart disease.Want to calculate…
Q: A psychologist is interested investigating the proportion of depressed teenagers in a particular…
A: Given that A psychologist is interested investigating the proportion of depressed teenagers in a…
Q: A poll summarized the results of a survey of 2,400 adults and 500 teens aged 13 to 17. It was…
A: From the provided information,
Q: We want to know if students with bronchitis at 5 years have more cough symptoms when they grow up.…
A: Answer:- Number of students with cough symptoms at a age 12 with Bronchitis at age 5 =32 out of 290…
There were 254.8 per 100,000 per year Myocardial deaths in the aspirin group compared with 439.7 per 100,000 per year in the placebo group. How many participants need to be treated with aspirin for 1 year to result in one (1) fewer myocardial death. Show calculations.
Step by step
Solved in 2 steps
- A total of 150 participants are selected for a study of risk factors for cardiovascular disease. At baseline (study start), 24 are classified as hypertensive. At one year, an additional 12 have developed hypertension and at 2 years another 8 have developed hypertension. What is the prevalence of hypertension at 2 years in the study?The Elisa test for the human immunodeficiency virus (HIV) that causes AIDS has been used in the screening of blood donations. As with most medical diagnostics test, the ELISA test is not infallible. If a person actually carries HIV, experts estimate that this test gives a positive result 97.7% of the time (the number is called the sensitivity of the test. If a person does not carry HIV ELISA gives a negative result 92.6% of the time. Suppose that 0.5% of the public carries HIV.A study published by Babcock and Marks (2010) showed that the average full-time U.S. college student studied for μ = 14 hours per week (SD = 4.8 hours per week) in 2005. We want to know if this average has changed in the past 15 years. In other words, we are going to do a study in which we try to determine whether there has been an impact of the passage of time on the amount of time college students spend studying. We selected a sample of n = 64 of today’s college students and find that they spent an average of M = 12.5 hours per week studying. Does this sample indicate a significant change in the number of hours spent studying? Use a two-tailed test (this means non-directional hypothesis) with α = .05.
- You may need to use the appropriate appendix table or technology to answer this question. Approximately 50% of all caregivers of older adults are caring for someone with memory loss (due to is percentage of caregivers caring for older adults with memory loss. This year, in a random sample of 400 caregivers, 181 were caring for older adults with memory loss uch as Alaheimer's or dementia). It is beleved that there has been a reduction in the (a) State the null and the alternative hypotheses. (Enter t for as needed.) (b) At the 0.05 level using the critical value approach, determine if there has been a significant reduction in the proportion of caregivers caring for adults with memory loss Compute the test statistk. Determine the critical value(s) for this test. (Round your answerta) to two decimal places. If the test is one-taled, enter NONE for the unused tal.) test statisticS test statistic State your condusion. O Reject Ha There is insufficient evidence to support the claim that the…The bacterium Staphylococcus aureus is commonly found on the skin and rarely causes major problems. If it gets under the skin or into the lungs it can cause boils or pneumonia. If the strain of bacterium causing these problems is resistant to methicillin, the infections can be life threatening. Methicillin resistant Staphy- lococcus aureus or MRSA is, therefore, a major concern in hospitals and clinics. Given the death rate from MRSA lung infections is 20%, if 20 patients are admitted in the hospital find the following probabilities: (a) Less than 3 die (b) At least 3 die. (c) Between 6 and 3 die.A researcher wants to know whether children with ADHD tend to watch more TV than children who are not diagnosed with the disorder. To examine this, a researcher obtains a sample of n = 36 children (ages 8 to 12 years) who have been diagnosed with ADHD. Each child is asked to keep a journal recording how much time each day is spent watching TV. The average for the sample is M = 4.9 hours/day. Assume that the average TV-watching time for the general population of 8-to-12-year-old children is µ = 4.1 hours/day with σ = 1.8. Is ADHD in children associated with an increased amount of TV-watching?
- Suppose 84% of hypertensives and 23% of normotensives are classified as hypertensive by an automated blood-pressure machine. What are the Predictive value positive and Predictive value Negative of the machine, assuming 20% of the adult population is hypertensive?Please show all working. A researcher suspects that the actual prevalence of generalized anxiety among children and adolescents is higher than the previously reported prevalence of generalized anxiety disorder among children and adolescents. The previously reported prevalence of generalized anxiety disorder among children and adolescents is 4.1%, and the researcher conducts a study to test the accuracy of the previously reported prevalence of generalized anxiety disorder by recruiting 98 children and adolescents from various pediatricians’ offices and tests them for generalized anxiety disorder using the DSM-5. The researcher determines that the prevalence of generalized anxiety disorder among the participants of the study is 6.8%. The researcher’s hypothesis, for a level of significance of 5%, should resemble which of the following sets of hypothesis? A) H0: p > .041; H1: p = .041; alpha= .05 B) H0: p > .041; H1: p = .041; alpha= .95 C) H0: p = .041; H1: p > .041; alpha=…Early life corresponds to the first bacterial colonization of the digestive tract, creating a microbiome thought to play an important role in human development. What might be the effect of early exposure to antibiotics on children's development? One study followed 11,532 full-term babies all born in the county of Avon, United Kingdom, during 1991 and 1992. Exposures to antibiotics during infancy were recorded, along with measures of body mass at regular intervals over several years. The researchers found that antibiotic exposure during the first six months of life was associated with increased body mass later in childhood.
- The mango is considered the "king of fruits" in many parts of the world. Mangoes are generally harvested at the mature green stage and ripen up during the marketing process of transport, storage, and so on. During this process, about 30% of the fruit is wasted. Because of this, the impact of harvest stage and storage conditions on the postharvest quality are of interest. In this experiment, the fruit was harvested at 80, 95, or 110 days after the fruit setting (the transition from flower to fruit) and then stored at temperatures of 20∘C, 30∘C, or 40∘C. For each harvest time and storage temperature, a random sample of mangoes was selected, and the time to ripening was measured. What are the factors, the treatments, and the response variables? Take each item from the answer bank and place into the appropriate category.A 2019 study surveyed Norwegian parents about their children's eating habits and taste sensitivities. We are interested in seeing if there is a relationship between sensitivity to sweetness and emotional overeating. The study reports an F* = 2.34 with dfb 3 and dfw = 96. How many levels of 'sensitivity to sweetness' were used in the study? How many subjects participated in the entire study?A community has 60,000 inhabitants, 35,000 of which are female. Of the female population, 525 have been diagnosed with osteoporosis. What is the prevalence rate per 1,00p?
