Question: (65 points) In Brain and Behavior Evolution (Apr. 2000), Zoologists conducted a study of the feeding behavior of blackbream fish. The zoologists recorded the number

(65 points) In Brain and Behavior Evolution (Apr. 2000), Zoologists conducted a study of the feeding behavior of blackbream fish. The zoologists recorded the number of aggressive strikes of two blackbream fish feeding at the bottom of an aquarium in the 10-minute period following the addition of food. The table listing the weekly number of strikes and age of the fish (in days) is reproduced here. It can be found that = 1444, = 398. = 235, 866, = 22, 078, and . = 60, 428. 150 Number of Age of Week Strikes (v) Fish (r) 85 120 2 63 136 3 34 4 39 155 58 162 6 35 169 7 57 178 8 12 184 9 15 190 .05. (17 points) It is hypothesized that as a fish grows one week (i.e., seven days) older, the number of strikes it makes weekly is expected to drop 3.5 times. Do the data seem to support this statement? Perform a formal significance test at a = (Hint: This is related to testing about B. but you need to figure out the hypothesized value.) To answer the question state the null Hypothesis and observed value of the test statistics? O a. Ho: B1 = -0.5 and - 1.3 ob. None OC Ho: B1 = 3.5 and 2.7 Od. Ho: B2 = -3.5 and - 2.7 QUESTION 8 (10 points) Given two 165-day-old blackbream fish, construct a 95% interval to predict the number of aggressive strikes that they make in a week. O a.(-2.30, -69.04) O b.(2.13, 69.04) O c(-1.93,-79.04) O d.(1.93, 79.04) (65 points) In Brain and Behavior Evolution (Apr. 2000), Zoologists conducted a study of the feeding behavior of blackbream fish. The zoologists recorded the number of aggressive strikes of two blackbream fish feeding at the bottom of an aquarium in the 10-minute period following the addition of food. The table listing the weekly number of strikes and age of the fish (in days) is reproduced here. It can be found that = 1444, = 398. = 235, 866, = 22, 078, and . = 60, 428. 150 Number of Age of Week Strikes (v) Fish (r) 85 120 2 63 136 3 34 4 39 155 58 162 6 35 169 7 57 178 8 12 184 9 15 190 .05. (17 points) It is hypothesized that as a fish grows one week (i.e., seven days) older, the number of strikes it makes weekly is expected to drop 3.5 times. Do the data seem to support this statement? Perform a formal significance test at a = (Hint: This is related to testing about B. but you need to figure out the hypothesized value.) To answer the question state the null Hypothesis and observed value of the test statistics? O a. Ho: B1 = -0.5 and - 1.3 ob. None OC Ho: B1 = 3.5 and 2.7 Od. Ho: B2 = -3.5 and - 2.7 QUESTION 8 (10 points) Given two 165-day-old blackbream fish, construct a 95% interval to predict the number of aggressive strikes that they make in a week. O a.(-2.30, -69.04) O b.(2.13, 69.04) O c(-1.93,-79.04) O d.(1.93, 79.04)
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