You also conducted a review of the research literature and found that similar studies examining the relationship between alcohol consumption and liver cancer found the following: Smithson et al. RR 3.3 (95% CI:1.95-5.20) Ribera et al. RR 2.1 (95% CI:1.17-3.33) Gonzalez et al. RR 2.75 (95% CI 2.26-3.45) Which one of Hill’s criteria does this illustrate? Explain.

Q: There is some evidence..... There appears to be some evidence suggesting that earlier retirement may…

A: Given:   X Y 39 9.3 48 10.9 59 10.7 70 9.1 74 6.4 78 9.1 81 7.2 87 7.9 88 8.5…

Q: Let the random variables x and y have joint pdf as follow 0<x<1,0 <y<1 f(x,y) = (11x² + 4y²), Find…

A: The covariance of two random variables X and Y is given by: Cov(X,Y)=E(XY)-E(X)E(Y) To find the…

Q: n a recent study, authors were interested in the relationship between exposure to pesticides and…

A:

Q: Five samples of a​ ferrous-type substance were used to determine if there is a difference between a…

A:

Q: is measurement is helpful in diagnosing various lung disorders ted in the study, and for each…

A: The data set is given as follows:: Mini Wright Meter:  Wright Meter Mini-wright Meter Wright Meter…

Q: The following table was presented in an article summarizing a study to compare a new drug to a…

A:

Q: (1).           % of men in this study received only Vitamin E and developed prostate cancer. (2).…

A: Given:     No Prostate Cancer Prostate cancer Total Selenium 8177 575 8752 Vitamin E 8117…

Q: Conduct an independent samples t-test to establish whether there is a significant difference in…

A: Given for academics with ‘low’ absenteeism: mean1 = 70.1, s1 = 8.34, N1=9 For academics with ‘high’…

Q: An article describes several studies of the failure rate of defibrillators used in the treatment of…

A: Given : Sample Size, n = 81 Number of successes, x = 15 confidence level,c=0.95

Q: Wilens and colleagues (2008) studied the association between bipolar disorder and substance abuse.…

A: We are given the following confidence intervals and are asked to answer the following questions…

Q: The General Social Survey (GSS) found that 571 out of 670 (85%) Americans answered the question on…

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Q: What is the logistic regression equation?   How would you interpret an odds ratio for a continuous…

A: The logistic regression is use to model the probability of events where who has two possibilities…

Q: the bed nets are in widespread use. In 1991, a nationwide survey was designed to estimate he…

A: Small variance estimates for statistical surveys are referred as the replication-based variance…

Q: (Case Study) A group of children who lived near a lead smelter in El Paso, Texas, were identified…

A: The whiskers of the box plot indicate the upper and lower quartile.

Q: Education Less than high school 3599 High school graduate/GED 8000 Some college/tech school 10,408…

A:

Q: Capsaicin content in red habanero chilli (Capsicum chinense Jacq.) is affected by the drying…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: Benzene is a pollutant that, according to studies, can be associated with health problems. Benzene…

A: Formula :

Q: Researchers have noted a decline in cognitive functioning as people age (Bartus, 1990). However, the…

A: The average of student MD is 7.4 and variance SS is 1215. Hypothesis: H0:µD=0 The antioxidant…

Q: A researcher conducts ANOVA with three treatments that have the following means: M1 = 6, M2 = 9, M3…

A: Any absolute difference of pair of means which is greater than HSD=2.5, is considered significant.

Q: 1.2 Sinusitis and antibiotics: Researchers studying the effect of antibiotic treatment for acute…

A:

Q: Use the following information to set up a 2 x 2 table and calculate appropriate measure of…

A: Total CHD patients = 450 Total patients without CHD = 702 A total of 405 CHD patients and 324…

Q: A research firm regularly conducts customer satisfaction surveys for an amusement park. A survey of…

A: The objective is to define the possible explanation for the significant difference between the…

Q: In a study published in Preventive Medicine (1991), researchers observed that women who underwent…

A: Given study: Researchers observed that women who underwent hormone replacement therapy (HRT) showed…

Q: In a study of 301 Hispanic women living in San Antonia, Texas, one variable of interest was the…

A: Given information Sample size n= 301 women No of women classified in the IFG stage x= 24 Population…

Q: se the following information to set up a 2 x 2 table and calculate appropriate measure of…

A: From the given information, the data can be presented in 2 x 2 table is,   fatty food normal diet…

Q: An article describes several studies of the failure rate of defibrillators used in the treatment of…

A: a) It is given that x=16 and n=81.

Q: Like many studies that involve BMI, the above studies are using BMI as a proxy for fat, and fat as a…

A: BMI- Body mass index, used as a measure to steady health

Q: Oishi and Shigehiro (2010) report that people who move from home to home frequently as children tend…

A:

Q: One-way ANOVA tests were performed to examine the effect of sleep deprivation (24, 36, 48 hours) on…

A: By definition the effect size η2, which explains the associated proportion of variance with one or…

Q: A meta-analysis (Anderson & Bushman, 2001) reported that the average correlation between time spent…

A: Given that the sample size is n= 21 and correlation coefficient is r= 0.19 We state hypothesis:  H0:…

Q: Researchers have noted a decline in cognitive functioning as people age (Bartus, 1990). However, the…

A:

Q: The following scores are from an independent- study comparing two treatment conditions, measures

A: Given data's of two treatment conditions Treatment I and Treatment II. n1=8n2=8α=0.05 The hypothesis…

Q: You've conducted a k-means cluster analysis and in your output you have the following average…

A: In the given problem we have, average within-cluster distances for each cluster cluster 1= 0.946,…

Q: After reading an article using research done by the Organization for Economic Co-operation and…

A: The 95% confidence interval for p is (0.25, 0.32).

Q: In a drug trial, Merck was interested in deciding whether, in the range 40 to 80 mg, the dosage of a…

A: The mean of sample means is X¯¯=X¯1+X¯2+...+X¯nn   =∑iX¯inwhere X¯i=ith sample mean…

Q: ), and (3) warmer (PVC frames covered with plastic). One of the article's authors kindly supplied…

A: Cooler Control Warmer 1.59 1.92 2.57 1.43 2 2.6 1.88 2.19 1.93 1.26 1.12 1.58 1.91…

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: Givenn=106x=48p^=xn=48106=0.4528α=0.01

Q: Use the following information to set up a 2 x 2 table and calculate appropriate measure of…

A: d. From the given information, the data can be presented in 2 x 2 table is,   fatty food normal…

Q: A case−control study was performed among 145 subjects with macular degeneration and 34 controls, all…

A: Null hypothesis: H0: Case/control status and risk score are independent.   Alternate hypothesis: HA:…

Q: 2. Does the herb Echinacea help the common cold? A study investigated the impact of echinacea vs. a…

A: A research study is conducted.

Q: In the study of Xu et al. (2018), risk factors of thyroid carcinoma were identified and results are…

A: Given that: Variable Odd Ratio (OR) 95% CI p value BMI, kg/m2 1.032 0.924-1.152…

Q: No need to answer in detail  Coronavirus is the most dangerous specially in adults  where the…

A: Given the case that children of adults were asked to fill in the questions. 64% control participated…

Q: An article describes several studies of the failure rate of defibrillators used in the treatment of…

A: Sample Size Sample number of events Sample proportion Sample 1 n₁ = 93 x₁ =11 p₁ = x₁/n₁…

Q: A data set from a study that examined the effect of a specific diet on blood pressure is provided .…

A: From the group  statistics table we can infer the following things: Mean Blood pressure of…

Q: An article claimed that "those with a college degree reported a higher incidence of sunburn than…

A:

Q: Researchers have noted a decline in cognitive functioning as people age (Bartus, 1990). However, the…

A: Here it is asked to test, " does this result support the conclusion that the antioxidant supplement…