You are studying type 2 diabetes. You observe that 130 out of 200 diabetics had taken selenium supplementation in the past 10 years. In contrast, only 30 of the 200 comparison patients reported taking a selenium supplement. What is the measure of effect appropriate for this study design?

Q: .What percentage of females are smokers?  2.What percentage of people who do not smoke are males?…

A: Cross tabulation helps a researcher to analyze the results of bivariate relationship between the…

Q: Could it be that smoking actually increases survival rates among​ women? The accompanying data…

A: The accompanying data represent the​ 20-year survival status and smoking status of 1334 women who…

Q: For the independent-measures t statistic, what is the effect of increasing the sample variances?

A: If there is more variance in the sample data , then the difference between the mean of data and data…

Q: Does statistically different indicate substantially different? Why or why not?

A: No, statistically different does not indicate substantially different. These two are different…

Q: If you were assigned to develop a study to determine if homeless people are resilient to certain…

A: From the given information, it is observed that the we need to develop a study to determine homeless…

Q: Which method describes an experiment?

A: HERE scenarios are given for check whether additive improve milage of car

Q: In another study of the effect of violent, sexuall sion, the same researchers use a within-subject…

A:

Q: When an interaction term is statistically significant, you must be cautious in interpreting the main…

A: Interactions:In ANOVA, firstly the interaction effects are found between the given variables. The…

Q: For all students enrolled during the previous Spring semester, it was found that 48% of all those…

A: Correct option is A parameter

Q: If you are analyzing statistical data from a range of percentages of participant responses and…

A: If you are analyzing statistical data from a range of percentages of participant responses and…

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: Does this make sense:  The study found that more people were cured by the new drug than by the old…

A: In the clinical trials ,many statistical techniques are used find whether new drug is effective or…

Q: A study looking at the effects of diethylstilbestrol (DES) exposure and breast cancer risk found the…

A: Given information: The output of test for independence is given.

Q: What variable of this study could have been controlled?

A: Controlling for a variable means measuring extraneous variables and removing them as they do not…

Q: What proportion of the sample reported that they had been cyberbullied?

A: Givensample size(n)=14795No.of respondents say yes they had been cyberbullied(x1) = 2219No.of…

Q: Which term best describes the experimental design used in this study?

A: we need to identify suitable experiment method for the given situation .

Q: The herpetologist ends up rejecting the null hypothesis. If the actual proportion of ridged…

A: The herpetologist ends up rejecting the null hypothesis. If the actual proportion of ridged…

Q: Is “how long it takes to correctly solve the puzzle” an explanatory variable or response variable?…

A: The variable that explains the expected cause, i.e., in other words, the variable that explains the…

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: For a repeated-measures study, a small variance for the difference scores indicates that the…

A:

Q: A study comparing three different treatment conditions is summarized above. Is there a significant…

A:

Q: What is the formula for STANDARDIZED EFFECT SIZE, COHEN’S d (TWO INDEPENDENT SAMPLES)?

A:

Q: What statistical method would you use when your variables are nominal and your measure of central…

A: Nominal variables are qualitative variables with categories having no natural ordering in it. For a…

Q: one-way between subjects ANOVA produces dftotal = 29 and dfwithin = 27. For this analysis, how many…

A: From the given information, Consider, from the one way ANOVA, Dftotal =29, Dfwithin =27 Thus, the…

Q: In a designed experiment, what are the experimental units?

A: Design of experiments (DOE) is a systematic method to determine the relationship between factors…

Q: Why is an experimental confound so damaging to the conclusions drawn from an experiment?

A: A confounding variable is an extra variable that an experimenter didn't take into account. They can…

Q: Why it is important to consider power while designing an experiment?

A: A test of hypothesis consists of 2 hypotheses: the null, H0, and the alternative, H1. Power: The…

Q: Why is it important to include a test of effect size when reporting our statistical test results?

A: Effect size:-   effect size is a quantitative measure of the magnitude of the experimenter…

Q: analyze her data

A: ANOVA:  This is a Statistical technique to check the variation in the data. We are checking the…

Q: Under what circumstances will the main effects in a factorial study not provide an accurate…

A: Factorial design: It is research design, which involves experimenting with different factors. There…

Q: It has been demonstrated that students with high self-esteem tend to have higher grades than…

A:

Q: The primary difference between an experimental and observational study is:

A: In observational study, the data is collected based on observing the data of interest. In…

Q: 2 and age 4 compared to children who drank whole or 2% milk (Scharf, Demmer, and DeBoer, 2013). Is…

A: Experimental research is a research method in which the control variables are manipulated to judge…

Q: er, which type of statistical test is most appropriate?

A: There are various statistical test that can help in exploring the relationship between two…

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: When testing a new​ treatment, what is the difference between statistical significance and…

A: Statistical significance guarantees about the Existence of an effect, whereasPractical Significance…

Q: You are planning a cross-sectional study of the impact of chocolate milk shake drinking on obesity…

A: Sensitivity and Specificity: While measuring the effect of any given factor on a particular disease,…

Q: Dr. Guidry conducts a study examining the relationship between the number of friends one has and the…

A: Given Information: Dr Guidry is interested in examining the relationship between the number of…

Q: What is one major difference between an observational study and an experimental study?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What statistical methods are typically used in an inferential study?

A: There are two major parts in Inferential statistics, i. Estimation ii. Hypothesis Testing So, these…

Q: An industrial/organizational psychologist has been consulting with a company that runs weekend…

A:

Q: Judge and Cable (2010) found that thin women had higher incomes than heavier women. Is this an exam-…

A: Exp study involves manipulation of control variable. Non exp study doesn't involve manipulation of…

Q: What conclusions can be drawn from a study with a “statistical significance” result?   What…

A: The result of a statistical test is said to be statistically significant, if the test statistic…

Q: What is the difference from a controlled variable and the control in a scientific experiment?

A: A control variable is any factor that we control or hold constant during an experiment. Whereas…

Q: When comparing test scores of two groups, a difference of one point would never be highly…

A: In testing of hypothesis, the sample size doesn’t influence the result of the test.

Q: Two researchers studied the relationship of positive emotions and longevity by examining smile…

A: from the given information Archival research can be defined as the research which involves primary…

Q: In a class of 31 students, how many would be above the third quartile?

A: From the above data  Sample size n=31 How  many would be above the third quartile?