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

Q: What is the difference between preventative measures and preventative statistics of a disease

A: preventive  healthcare or preventive  medicine refers to the measures taken in order to prevent and…

Q: Would an experiment design that would be analyzed with a repeated measures ANOVA be superior or…

A: It is good to use a repeated measures ANOVA when the measures are from the same persons at different…

Q: What is Observational Study?

A: Experimental study: If the researcher influences or controls one of the variables in the study and…

Q: What does Statistical Significance implies?

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

Q: What do think are the advantages and disadvantages of observational and experimental studies?

A:

Q: What is meant by an influential observation?

A: The definition of an influential observation is give bas follows:

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: Explain the Potential Outcomes and the Average Causal Effect of using randomized controlled…

A: A potential outcome is the outcome for an individual under a potential treatment. And the casual…

Q: Distinguish between observational and experimental types of studies?

A: An observational study is a study in which researchers simply collect data based on the data…

Q: What is the difference between independent samples and dependent samples?

A: Dependent samples: The two samples are said to be dependent if there exist an effect of one on…

Q: 2. What are the differences between qualitative and quantitative data analysis?

A: Difference between qualitative and quantitative data analysis

Q: What is the difference between structured and unstructured data?

A: Structured Data: Data that is the easiest to search and organize, since it is usually contained in…

Q: What data collection techniques are useful in case studies?

A: Given problem Given that   What data collection techniques are useful in case studies ?

Q: How can the specific characteristics of a population affect the analysis of data?

A: The basic data which is collected for any population before the analysis of data is their…

Q: What are the conclusions of the study?

A: Parametric test is used to determine the mean significance between the sample and population when…

Q: Describe what does a non-statistical evaluation of the graphs of data for the two-factor experiment…

A: In design of experiment , "Factorial design" allows experiment to do study on many factors…

Q: Regarding observational studies and designed experiments: a. Describe each type of statistical…

A:

Q: What method(observational, designed, retrospective) is mostly used in gathering a data in a high…

A:

Q: What is meant by the term "Statistically Significant Difference"? If it is statistically significant…

A: Statistically Significant Difference simply mean that relationship between two or more variables is…

Q: What is statistical inference ? How do you conduct a comparative experiment ?

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

Q: Why do we want to avoid bias when collecting data?

A: Bias : It is any trend or deviation from the truth in data collection, data analysis, interpretation…

Q: Is the study an experiment or an observational study ? How do you know?

A: It is an important part of statistics. It is widely used.

Q: why is the decline in cohort quality overestimated in cross-sectional data?

A:

Q: What quantitative research design should be used in "Relationship between Academic Stressors and…

A: Statement is given

Q: What is the most important consideration when designing a study on human subjects?

A: Human trials.

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: Explain why researchers typically focus on statistical independence rather than statistical…

A: Independent Events:The events A and B are said to be independent, if the result of one of the events…

Q: Discuss the differences between a designed experiment and an observational study.

A: Experimental study is used to measure the effects of certain treatments on a particular sample.…

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: what is the difference between grouped and ungrouped data?

A: Data can be classified as grouped data and ungrouped data.

Q: Distinguish between a Longitudinal study and Cross-sectional study

A: Difference between longitudinal and cross-sectional study is shown below

Q: What is the difference between experiment and testing?

A: Let EXP denote experimenting. Let TES denote testing.

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

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

Q: Explain how the average causal effect for a given population can be estimated by using an ideal…

A: Causal effect may be different for different individuals and it is not possible to measure the…

Q: What is the difference between multivariate data set and bivariate data?

A: Bivariate data: This type of data involves two different variables. The analysis of this type of…

Q: Justify when and why we should use Levene's Test to statistically analyze data in one-way ANOVA?

A: Introduction: It is required to justify when and why Levene's test should be used while analyzing…

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: Describe a hypothetical study that uses questionnaire, interview or observational data.

A: Questionnaire is a set of printed questions with a multiple choice of answers, devised for the…

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: What does the word 'quartile' mean?

A: Quartiles are the values that divide a list of numbers into quarters: Put the list of numbers in…

Q: What is one of the distinctions between a population parameter and a sample statistic?

A: The population parameter is the measure based on whole population. And the statistic is a measure…

Q: 13. What is the Relative Risk for these data?

A: The given data set is, The formula for calculating the relative risk is,

Q: Can you Describe the role of primary data and secondary data in the classification of data with…

A: Primary Data-The data which will be collected for the first time by the research development people…