This is on a practice hw cant figure it out non graded

QUESTION 6 4 points Dr. Wu wants to test whether, on average, the amount of time that UTD freshmen and sophomores spend on entertainment is different from one that UTD juniors and seniors spend. She randomly chooses 200 students from the freshmen and sophomore population and randomly chooses 160 students from the junior and senior population. State the null and alternative hypotheses. O A. 2-sample test: Ho: / 12 = #34 V.S. HA: " 12 > / 34 O B. 1-sample paired test: Ho: /12 - #34 = 0 V.S. HA: /12 - # 34 # 0 . C. 1-sample paired test: Ho: " 12 - # 34 = 0 V.S. HA: "12 - # 34 > 0 O D.2-sample test: Ho: " 12 = #34 V.S. HA: " 12 # # 34 QUESTION 7 4 points Dr. Wu wants to test whether, on average, the amount of time that UTD freshmen and sophomores spend on entertainment is different from one that UTD juniors and seniors spend. She randomly chooses 200 students from the freshmen and sophomore population and randomly chooses 160 students from the junior and senior population. The 200 freshmen and sophomores spend 4.34 hours on average with a SD of 2.53 on entertainment, while the 160 juniors and seniors spend 3.58 hours on average with a SD of 2.57 on entertainment. Which of the following is TRUE? O A. At 5% level of significance, we should reject Ho O B. If the sample sizes were 20 and 16 instead of 200 and 160, the p-value remains the same. . C. At 1% level of significance, we don't reject Ho O D.P-value = 0.0025