A researcher has computed a ttest for paired samples and has obtained a t of 2.02. The degrees of freedom associated with her t test is 18. Consult the tdistribution tabie. Can she reject her null hypothesis at a twotailed a of.05? O yes 0 no Which of the following research descriptions would be appropriately addressed with a paired samples ttest? O A randomized clinical trial involved the testing of an experimental drug on cholesterol reduction. 100 subjects were randomized to either: 100mg or 50mg. The dependent variable was the percent reduction in cholesterol. The research question was: Is there a difference in cholesterol reduction between the two groups? 0 A cohort of patients being treated at a clinic were asked to complete the SF-36. a health questionnaire that yields a score from 0-100. where higher scores represent better health They were assessed at the beginning of their treatment and again at followup. The research question was: Is there a difference in health between the baseline and follow-up assessments? O A cohort of patients being treated at a clinic were asked to complete the SF36. a health questionnaire that yields a score from 0-100. where higher scores represent better health The researchers also assessed their cholesterol levels. The research question was: Is there an association between health and cholesterol levels? The remaining questions [from this question through to the last question} pertain to the research scenario and results described in this attachment, Quiz 4 Tables and Information. Quiz 4 Tables and Informationpdf List the numerator of the t. Question 5 15 pts List the denominator of the t. Question 6 15 pts What is the exact chance of obtaining this t value at least this high or higher, if the null hypothesis were true? List as a percentage (but do not enter the percent sign - - for example, if your answer is "80.4%", enter "80.4" and do not enter "%").Write your interpretation of the results of the independent samples ttest} as you would in an APA-formatted journal. A retrospective associational study examined the medical utilization of homeless veterans receiving treatment in a Veterans Affairs health care system (LePage, Bradshaw, Cipher, 8: Hooshyar, 2014). A sample of veterans seen in the Veterans Affairs health care system in 2010 was evaluated for homelessness at any point during the year. as well as chronic medical and psychiatric diseases. and medical utilization. A subset of the data was analyzed. The independent variable was group: Homeless vs. Not Homeless, and the dependent variable was the number of visits to the emergency department in 2010. The null hypothesis is \"There is no difference between homeless veterans and non-homeless veterans on the number of ED visits in 2010." The independent samples t-test was performed and the SPSS results are shown below. T-Test Group Statistics Std. Error Homeless N Mean Std. Deviation Mean Number of Emergency Not Homeless 10 1.50 1.080 342 Department Visits Homeless 10 3.70 1.337 423 Independent Samples Test Levine's Test for Equality of Variances I-best for Equality of Means Mean Sitd. Error F Sig Sig. (2-tailed) Difference Difference Number of Emergency Equal variances Department Visits assumed 563 463 4 047 18 001 -2.200 544 Equal variances not -4.047 17.236 001 544 assumed -2.200