the heart). The study randomized 42 patients to colchicine and 49 patients to standard therapy, and followed them all for 6 months. They reported the following results: Colchicine Standard Rx 0-15% 35-50% 60-75% Developed Recurrent Pericarditis No 32 27 85-100% Yes 10 In what range is the relative risk reduction? 22 32 59 42 49 91 The relative risk reduction can not be calculated from these data
Q: Number of hip fractures in menopausal women is currently a casue for concern in orthopedic research…
A: 1. Consider that random variable x defines the number of fractures.
Q: The data below are from an independent-measures experiment comparing three different treatment…
A: Given Information: Treatment1 Treatment2 Treatment3 0 1 4 0 4 3 0 1 6 2 0 3
Q: Which of the following study designs is most efficient in studying a rare exposure? A. Case control…
A: Solution-: Which of the following study designs is most efficient in studying a rare exposure?(A)…
Q: A medical journal reported on an experiment intended to see if a certain drug could be used as a…
A: Since you have posted a question with multiple sub-parts, we will solve the first 3 sub-parts for…
Q: In clinical trials of a medication, 2055 subjects were divided into two groups. The 1536 subjects in…
A: Two sample proportion test: Two sample proportion test is used to test the significance difference…
Q: Prenatal Vitamin Autism Typical Development Total No vitamin 115 66 181 Vitamin 144 163 307 Total…
A: Solution: The observed frequency table is Parental vitamin Autism Typical Development Total…
Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…
A: Observational study: In observational study, the individuals of the study are observed by the…
Q: State the null and alternative hypotheses.
A:
Q: In a clinical trial of 2198 subjects treated with a certain drug, 26 reported headaches. In a…
A: The question is about: underline; position: relative; text-decoration-color:#35af7b;…
Q: The distribution of responses is summarized below. 52 Group Treatment Control Total Self-reported…
A: Let p1 denote the proportion of patients who experienced a significant improvement in symptoms in…
Q: The following data were obtained from a repeated-measures research study. What is the value of MD…
A: Difference in the data is :5, 4, -2, 5
Q: A trial evaluated the fever-inducing effects of three substances. Study subjects were adults seen in…
A: The table for the decreases in body temperature is given.
Q: A new over-the-counter medicine to treat a sore throat is to be tested for effectiveness. The makers…
A: The objective of this question is to determine whether there is a significant difference in the mean…
Q: The 90% confidence interval is from to (Round to three decimal places as needed.)
A: Given,n=400x=32p^=32400=0.08α=1-0.90=0.10α2=0.05 Zc=1.645 (use excel formula =NORM.S.INV(0.90 +…
Q: A new drug for pain relief is being tested within a given palliative care population. The new drug…
A: Null and alternative hypothesis: Given data represents the pain ratings reported by the patients…
Q: This was a question on my homework and I would like to know if I answered it correctly. Thank you…
A: Odds (O):The “odds” of the occurrence of an event is the ratio of the number of occurrences of the…
Q: A recent study randomly selected women from various countries around the world and collected…
A:
Q: A researcher is trying to develop a treatment for a new viral disease. He recruits 100 patients who…
A: In correlational research design, the researcher has control over the variables in the study and…
Q: A researcher conducts an independent-measures study examining how the brain chemical serotonin is…
A: A. Null and alternate hypotheses: The investigator is specifically interested to test whether the…
Q: The ANOVA table that corresponds to this data is below. What type of tests could you conduct that…
A: Here the dependent variable is the body temperature of the adults.The three treatments are aspirin,…
Q: A researcher conducts an independent-measures study examining how the brain chemical serotonin is…
A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, we have helped…
Q: Age at first marriage. The National Survey of Family Growth conducted by the Centers for Disease…
A: 5534 women selected randomly; n=5534 The average age is 23.44 and standard deviation is 4.72;…
Q: researcher is interested in learning more about the protective effects of exercise. He conducts a…
A: here we have given pairwise data that is each point stress levels corresponds to one point in…
Q: The article “Factors Associated with Exercise Behavior in People with Parkinson Disease” (T. Ellis,…
A:
Q: Lynn University wants to examine whether students display better academic performance in class…
A:
Q: Dr. Guidry conducts a study examining the relationship between the number of friends one has and the…
A: A study reported in the Journal of Small Business Management concluded that self- employed…
Q: One study of cell phones and the risk of brain cancer looked at a group of 469 people who have brain…
A: The study was done to know if the use of cell phones and the risk of brain cancer are associated…
Q: A report summarizing scores for students on a verbal aptitude test x and a math aptitude test y…
A: Given that - x = 480, sx = 80, y = 500, sy = 120, r = 0.6.
Q: A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo.…
A: Given Information : A clinical trial is conducted comparing a new pain reliever for arthritis to a…
Q: A study compared tooth health and periodontal damage in a group of 40 young adult males with a…
A: Perform the 2-sample T test using the sample data. Null hypothesis: μ1=μ2 Alternative hypothesis:…
Q: A group of disabled women ages 65 and older were followed for several years. It was found that those…
A: In the following question it being observed that is there a cause and affect relationship between…
Q: People who sustain a concussion or a traumatic brain injury (TBI) are likely to experience sleep…
A: Given that Researchers recruited a sample of 31 patients who had their first TBI 18 months earlier…
Q: suppose we are interested in comparing the proport of male students who smoke to the proportion of…
A: Given Information: There are 150 students in total. Of which 60 are males and 90 are females.…
Q: A case-control study is conducted to assess the relationship between heavy alcohol use during the…
A: From the provided information, The table can be constructed as: Miscarriage Delivered Full…
Q: To examine the effect of relaxing music on math test performance, a researcher wants to compare the…
A: The provided information is as follows:The data summary for the math test with music isThe data…
Q: Lynn University wants to examine whether students display better academic performance in class…
A: Given that data. In Class GPA Online GPA 4.0 4.0 3.5 2.2 3.7 3.3 3.5 3.7 2.0 2.5…
Q: Dep.Variable:__ Is it the Hypothesis one-tailed or two-tailed?__ Proper t-test statistic:__ Why? _…
A: Given : Anxiety scores: 12, 15, 10, 8, 10, 5, 10, 13, 4, 6 We have to calculate mean and standard…
Q: An article included a summary of findings regarding the use of SAT I scores, SAT II scores, and high…
A: It is given that, SAT II scores are the best predictor, and explain 17 percent of the variance in…
Step by step
Solved in 3 steps with 1 images
- A source table has the following information: Three treatment conditions with a sample of n =7 participants in each treatment. You know SS(BW) = 20 and MS(WI) = 2. What is the missing value for MS(BW)? Answer choices: 40, 10, 2, 5 You have an ANOVA source table with the following information: Three treatment groups with a sample of n = 10 participants in each treatment. You also know the SS(BW) =20 and F = 5.00. What is the missing value for SS(Total)? Answer choices: 74, 54, 30, 22 For an experiment involving 2 levels of factor A and 3 levels of factor B with a sample of n = 5 in each treatment condition, what is the value for df(WI)? Answer choices: 30, 29, 24, 20A study is designed to investigate whether there is a difference in response to various treatments in patients with Rheumatoid arthritis. The outcome is the patient’s self-reported effect of treatment. The data are shown below. Is there a significant difference in effect of treatment? Run the test at a 5% level of significance. Symptoms Worsened No Effect Symptoms Improved Total Treatment 1 22 14 14 50 Treatment 2 14 15 21 50 Treatment 3 9 12 29 50 Using the data above, suppose we focus on the proportions of patients who show improvement. Is there a statistically significant difference in the proportions of patients who show improvement between treatments 1 and 2? Run the test at a 5% level of significance.Dr. Guidry conducts a study examining the relationship between the number of friends one has and the experience of daily stress and life satisfaction. She randomly samples 1,500 elderly men and women in Nashville, Tennessee (the state capital), located in the southern United States. Below are her findings.• Life satisfaction and experience of daily stress: r = .57 (p = .01)• Number of friends one has and experience of daily stress: r = .09, not sig.• Number of friends one has and life satisfaction: r = .36 (p = .04) Which of the following conclusions can Dr. Guidry draw about the number of friends one has and life satisfaction based on her statistical analyses? a. The probability of her sample coming from a zero association population is about 4%. (correct answer) b. The probability of her sample coming from a zero association population is about 96%. c. The relationship is not statistically significant. d. The strong correlation means that the number of friends one has causes an…
- A certain virus affects 0.7% of the population. A test used to detect the virus in a person is positive 87% of the time if the person has the virus (true positive) and 14% of the time if the person does not have the virus (false positive). Fill out the remainder of the following table and use it to answer the two questions below based on a total sample of 100,000 people. Virus No Virus TotalPositive Test Negative Test Total 100,000a) Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest hundredth of a percent and do not include a percent sign. % b) Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest hundredth of a percent and do not include a percent sign. %In the article “Explaining an Unusual Allergy,” appearing on the Everyday Health Network, Dr. A. Feldweg 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, 38 of 500 randomly selected U.S. asthmatics were found to be allergic to sulfites. Find and interpret a 95% confidence interval for the proportion p of all U.S. asthmatics who are allergic to sulfites.(OPHTHALMOLOGY) The following data are from a study on Botox injections. Patients received a high-dose injection in one eye (experimental treatment = treatment E) and a low-dose injection in the other eye (control treatment = treatment C). Patients were asked to rate the level of pain in each eye on a 1–10 scale, with higher scores indicating more pain. The assignment of treatments to eyes was randomized. The subjects came back over several visits. Data from the last visit are given in the following table: 1. Which of the following is the correct test to conduct given the situation above? 2. The hypotheses are: 3. What is the level of significance? 4. What is the computed test statistic? Hint: Use (mean of "Pain in E eye") minus (mean of "Pain in C eye") 5. What is the correct decision based on the p-value or critical value method?
- Dr. Blake is interested in the effects of intoxication on driving ability. Participants are recruited and encouraged to consume one to four mixed drinks during a one-hour period. Dr. Blake records the number of driving errors made while the participants navigate a 20-mile course in a driving simulator and measures the participants' blood alcohol content at the end of the simulation. What statistical test should Dr. Blake use to analyze these data? a. one-way within-groups ANOVA b. one-way between-groups ANOVA c. chi-square test of indepandence d. Pearson correlation coefficientAs a good experimenter, you have built a predictive model of the experimental data. The differences between the actual response data and the model data are termed: A. Confounded data B. Nested experiments C. Residuals D. Efficiency of estimators6. A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and the outcome is pain relief within 30 minutes. The data are shown in Table 7–54. Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.
- A team of epidemiologists at the Mayo Clinic wanted to find whether there is an association between obesity and cardiovascular disease (CVD). They conducted a prospective cohort study following obese and non-obese individuals who were free of CVD at the beginning of study for five years. The investigators were also interested in assessing age as a potential confounder, effect modifier, or both. Use the data below to answer the accompanying questions. CVD No CVD Total Obese 10 90 100 Not Obese 35 465 500 Total 45 555 600 CVD No CVD Total Obese 36 164 200 Not Obese 25 175 200 Total 61 339 400 1. Compute the appropriate measure of association for those who were less than age 50. 2. Compute the appropriate measure of association for those who were older or equal to age 50. 3. Compute the crude measure of association? 4. List three attributes that age must satisfy before it could…In a clinical trial of 2022 subjects treated with a certain drug, 21 reported headaches. In a control group of 1745 subjects given a placebo, 24 reported headaches. Denoting the proportion of headaches in the treatment group by p, and denoting the proportion of headaches in the control (placebo) group by pe, the relative risk is p/pe. The relative risk is a measure of the strength of the effect of the drug treatment. Another such measure is the odds ratio, which is the ratio of the odds in favor of a headache for the treatment group to the odds in favor of a headache for the control (placebo) group, found by evaluating Pt/(1-Pt) The relative risk and odds ratios are commonly used in medicine and epidemiological studies. Find the relative risk and odds ratio for the Pc/(1-Pc) headache data. What do the results suggest about the risk of a headache from the drug treatment? Find the relative risk for the headache data. The relative risk = (Round to three decimal places as needed.)Can you tell me if my answers are correct for the following question on my homework assignment:1. A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below.Pain Relief No Pain ReliefNew Medication 44 76Placebo 21 99Estimate the risk difference in pain relief between treatmentsRD = .192Estimate the relative risk in pain relief between treatmentsRR = 2.10Estimate the odds ratio in pain relief between treatmentsOR = 2.74The upper and lower limits of the are shown belowLower Limit of CI: ____0.41____Upper Limit of CI: ___1.61_____Based on the Confidence Interval values which of the following are true?A. One can be 95% confident that the true value will be…