A researcher has a hypothesis that a specific drug may have a higher prevalence of side effects among members of the African American population than members of the Caucasian population. Which statistical technique might the researcher want to use when designing a study to test their hypothesis?

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: A statistical procedure in determining which hypothesis is more acceptable as true or which…

A: HERE USE basic  hypothesis testing

Q: How would you explain the analysis of variance, assuming that your audience has not had a statistics…

A:

Q: What does Statistical Significance implies?

A: Practical significance: The practical significance states that even if the treatment tested is…

Q: When conducting a significance test for correlation, if your null and alternative hypothesis are:…

A: Test is that whether or not the correlation is significant.

Q: Spencer would like to study how gender and PTSD in veterans impacts risk for dementia. In order to…

A: Here the variables which are being manipulated are Gender and PTSD , while the variable which is…

Q: what is the appropriate statistical analysis to determine whether males and females differ?

A:

Q: Why does a large value of the F statistics provide evidence against the null hypothesis?

A: We use F-statistic (F ratio) when we are comparing the group means like ANOVA test for for more than…

Q: When the IV and DV are both numeric, which statistical test is most appropriate to use for…

A: Regression analysis is used to estimate the relationship between variables. There will be one…

Q: Provide an example of a study in which an independent measures ANOVA would be warranted ?

A: Introduction: The ANOVA or analysis of variance is a parametric method of hypothesis testing,…

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: A sales force of a major restaurant chain was trying to determine which item would be more popular…

A: Some of the different types of statistical procedures are given below: ANOVA Cluster Analysis…

Q: If we have measurement error in our data, and those errors are truly random, what will the average…

A: Average =Sum of errorsNumber of errors

Q: For a repeated measures study, if the null hypothesis is true, then what value should be obtained…

A: According to the provided information, the null hypothesis is true

Q: What is meant by a result being statistically significant?

A: There are mainly two important things in any research. Practical significance and statistical…

Q: A quality-control manager was concerned about variability in the amount of an active ingredient in…

A: Given data: Sample size = 21 To find: What is the probability that the sample variance of the amount…

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: What statistical procedure is best for the attached scenario and how will it answer the research…

A: Instruction : "What statistical procedure is best for the attached scenario and how will it answer…

Q: If you have a sample size of 100 from a population of rope with sample mean breaking strength of 960…

A: Solution: Let X be the breaking strength. From the given information, x-bar = 960 pounds, S=200…

Q: A researcher conducted a research that majority of people who died during pandemic bought a new…

A: Given: Research that majority of people who died during pandemic

Q: What is an example of a statistical presentation ? Can you tell me what is it telling me ? What…

A: In statisics, graphs are helpful in presenting the statistical data. In order to improve the…

Q: Discuss how the concept of statistical independence underlies statistical hypothesis testing in…

A: In order to test whether the two categorical variables are independent from each other or not, the…

Q: Is the Chebyshev's rule used only with populations? Are samples used as well?

A: Yes, Chebyshev’s rule can be applied to population as well as sample.We should know the following…

Q: Why is it important to know what type of statistical test should be run before data is collected?

A: It is important know what statistical test should be run before data is collected to ensure data…

Q: What is the difference between testing hypothesis on a population and testing hypothesis when…

A: Statistical hypotheses testing:   Hypotheses testing is used to make inferences about the population…

Q: whats a statistical hypothesis?

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

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: what is a statistical model

A: A statistical model is process of applying statistical analysis to the given data set and it…

Q: Why is statistical inference generally used to obtain information about a population proportion?

A: Generally, the size of the population that is considered under study is large. It would be difficult…

Q: What is meant by the phrase statistically significant?

A: Simple random sampling:Simple random sampling is the process of sampling in which every individual…

Q: what kind of statistical data might a barglar alarm company employ in trying to convince urdban…

A: Statistical Data: By statistical data, we mean the factual material used as a basis for discussion…

Q: The term clinical means that the study involves people.  True  False

A: Given, The term clinical means that the study involves people.

Q: A colleague of yours has made a decision to decrease sample size because of limited funding.  What…

A: Probability value: P-value or probability value method involves the probability of getting a test…

Q: A sample survey by Comcast asked a random sample of customers about use of the Internet and about…

A: The test is to check whether there is a relationship between Internet use and community type or not.…

Q: One of the objectives of a well-designed experiment is to reduce variability O True O False

A:

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: What is statistical significance?

A: Statistical significance:   Statistical significance determines that the results obtained in the…

Q: Is this study experimental or observational? Justify.

A: In the study given , The people have been divided into groups to determine the effect of Vitamin E…

Q: What is the best thing to do when the result failed to meet statistical significance but had a…

A: Statistical significance of a result: It is used in the testing of hypotheses. To determine whether…

Q: When do you consider a person to be statistically literate?

A: From the given information we find solution

Q: She made 10

A: Given that A typical 12-ounces serving of beer is said to be 150 calories. The above statement…

Q: What does statistically significance indicates?

A: Statistical significance: If the chance of occurrence of an event is less than or equal to 5% then…

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: The Behavioral Risk Factor Surveillance System is an ongoing health survey system that tracks health…

A: The data is illustrated in the following way- Age-Group (years) Yes No Total 18-34 231…

Q: If, in an analysis of variance, you find that MSTR is greater than MSE, why can you not immediately…

A: While performing Analysis of Variance (ANOVA), we calculate the test statistics which is the ratio…

Q: What is meant by saying that a statistical procedure is robust?

A: A statistical procedure is said to be robust in the following situations when the procedure is…

Q: It states that there is significant difference between the observed and expected data.

A: Alternative Hypothesis

Q: If the underlying population of study is not normally distributed, how large should the sample size…

A: Introduction: Define X as the random variable of interest here. Suppose that X has a distribution…

Q: The variablilty of statistics is described by

A: Variance describe the  variability in the data set.