(H1 -H2): (4,17) (41 -Ha): (5,8) (H1 -Ha):(-12.2) (42 -Ha):(-4,11) (42 -H):(-13, - 5) (H3 -Ha):(-8, - 3) A multiple-comparison procedure for comparing four treatment means produced the confidence intervals shown to the right. Rank the means from smallest to largest. Which means are significantly different? Rank the means from smallest to largest. Select the correct answer below. O A. (4, H4) < (H2H3) OC. (4.42) (HgiH4) OE. (2#3) (H1.Ha) O B. (H3 44) < (, #2) O D. (43) < (#2-H4) OF. (42ka) (H1 H3) Which means are significantly different? Select all that apply. DA. P2 and H4 O B. H, and H2 Oc. 2 and Pa O D. H, and H4 DE. Pa and p. OF. H and P3

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The sample correlation is -0.8. If the sample size was 40, then the 99% confidence interval states that the population correlation lies between -.909 and

You have been asked to determine if two midterm tests of the same class have different mean scores. Midterm test 1 has mean μ1 and midterm test 2 has mean μ2. Using a random sample of 25 students, the sample mean is 50 for midterm test 1 and 60 for midterm test 2. Test statistics is given and it equals to -2.5. At the 5% significance level, you would like to test whether the students have the same performance in the two midterm tests. What is the conclusion for this test? (4%)   A. Reject the null hypothesis.   B. Both the null hypothesis and alternative hypothesis are false.   C. Reject the alternative hypothesis.   D. Cannot reject the null hypothesis.     2. From a random sample of 300 students at a state university, you find the average number of hours of study time each week is 30 with a standard deviation of 5. In this research situation, (4%)   A. the parameter is 5.   B. the parameter is 30.   C. the population is the 300 students surveyed.…