Please answer these THREE questions with explanations:

9. In R-programming, which of the following is an example of a two-sided 2 independent sample t-test? A. >t.test(distance, accuracy, var.equal = TRUE, alternative = 'greater', paired = TRUE) B. >t.test(distance, accuracy, var.equal = TRUE, paired = TRUE) C. >t.test(distance, accuracy, var.equal = TRUE, alternative = 'greater') D. >t.test(distance ~ gender, data = people, var.equal = TRUE)13. A geneticist claims that four species of fruit flies should appear in the ratio 1:3:3:9. Suppose that a sample of 4000 flies contained 226, 764, 733, and 2277 flies of each species, respectively. At the 10% significance level, is there sufficient evidence to reject the geneticist's claim? A. The test proves the geneticist's claim B. The test proves the geneticist's claim is false C. The test does not give sufficient evidence to reject the geneticist's claim D. The test gives sufficient evidence to reject the geneticist's claim E. The test is inconclusive5. Sleep researcher hypothesizes that people who are allowed to sleep for only four hours will score significantly lower than people who are allowed to sleep for eight hours on a cognitive skills test. He brings sixteen participants into his sleep lab and randomly assigns them to one of two groups. In one group, he has participants sleep for eight hours and in the other group, he has them sleep for four hours. The next morning, he administers the SCAT (Sam's Cognitive Ability Test) to all participants. (Scores on the SCAT range from 1-9 with high scores representing betterperformance). SCAT scorese 8 hours sleep group (X)e 70 34 30 4 hours sleep group (Y) 80 40 What is the conclusion? A. Reject HO B. Accept HO