Module 4 DQ 1 and DQ 2Tutor MUST have a good command of the English languageThese are two discussion questionsDQ1 and DQ2 posts must be at least 150 words and have at least one reference cited for each question. In-text citation, pleaseTutor MUST have a good command of the English languageSources need to be journal/scholarly articles.Use only articles that are published between 2015-2018 (except for your theory articles which will be older as you must cite primary sources).No textbook or direct quotesPlease separate the two DQ with their reference pageMy project is CLABSI preventionDQ 1Describe a vulnerable population in terms of research. Why is the population considered vulnerable? What other groups might also be considered vulnerable populationsDQ 2Assume you want to do a project that compares the survey results before an intervention to those after an intervention in the same sample (the same people will take both surveys). You plan to use a paired t-test to analyze your results. Using the “Determining the Appropriate Sample Size,” Topic Material, perform a sample size calculation to determine how large your sample should be. Justify your sample size calculation with citations. Discuss how your sample size may affect the validity of your study.