II. Consider the data from two samples displayed in the two histograms: Sample A Sample B 30 30 25 25 20 20 f 15 f 15 10 10 5- 5. 10o 20 20to 30 30 to 0 to 50 50 to 6 to 70 70 to M NO to 90 90 to 100 10 to 20 20 to 30 30 to 40 40to 0 to Determine if the following statements are a) TRUE or b) FALSE. Do not

The data to the right represent the number of chocolate chips per cookie in a random sample of a name brand and a store brand. Complete parts (a) to (c) below. Full data set D Name Brand Store Brand 20 23 26 24 28 19 21 27 33 28 33 15 29 22 25 17 22 21 22 30 20 26 23 24 25 27 ... (a) Draw side-by-side boxplots for each brand of cookie. Label the boxplots "N" for the name brand and "S" for the store brand. Choose the correct answer below. OA. OB. OC. N- N- N- 10 20 30 40 10 20 30 40 10 20 30 40 (b) Does there appear to be a difference in the number of chips per cookie? O A. Yes. The store brand appears to have more chips per cookie. O B. No. There appears to be no difference in the number of chips per cookie. O C. Yes. The name brand appears to have more chips per cookie. O D. There is insufficient information to draw a conclusion. (c) Does one brand have a more consistent number of chips per cookie? O A. No. Both brands have roughly the same number of chips per cookie. O B. Yes. The…

11)

Suppose course evaluation ratings for four college instructors are shown in the following table. Instructor Black Jennings Swanson Wilson 89 87 89 80 80 79 76 83 78 85 69 56 69 83 85 72 96 98 83 88 68 98 85 87   83 84     94 81       82   Use ? = 0.05 and test for a significant difference among the rating for these instructors. State the null and alternative hypotheses. 1. H0: MedianB = MedianJ = MedianS = MedianW   Ha: MedianB ≠ MedianJ ≠ MedianS ≠ MedianW 2. H0: MedianB ≠ MedianJ ≠ MedianS ≠ MedianW    Ha: MedianB = MedianJ = MedianS = MedianW     3. H0: Not all populations of teaching evaluations are identical.   Ha: All populations of teaching evaluations are identical. 4. H0: MedianB = MedianJ = MedianS = MedianW    Ha: MedianB < MedianJ > MedianS > MedianW 5. H0: All populations of teaching evaluations are identical.   Ha: Not all populations of teaching evaluations are identical.   Find the value of the test statistic. (Round your answer to…

Are these answers correct?