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- Reading is fundamental to a teenager's ability to perform well in school. Assume a researcher is interested in the ability of the number of books read over the summer to predict ACT Reading scores. Using a random sample of 10 random high school students the researchers recorded the number of books read over the summer and the students' ACT Reading scores. Books Read (X) ACT Score (Y) (X- Xmean) (Y - Ymean) (X-Xmean)(Y-Ymean) (X-Xmean)? (Y - Ymean)? 2 16 -5.4 -14.9 81 29 221 2 19 -5.4 -11.9 64 29 141 3 17 -4.4 -13.9 61 20 192 4 25 -3.4 -5.9 20 12 34 21 -3.4 -9.9 34 12 97 24 -1.4 -6.9 10 2 47 6 21 -1.4 -9.9 14 2 97 8 24 0.6 -6.9 -4 47 7 27 -0.4 -3.9 2 15 10 22 2.6 -8.9 -23 7 78 Total 52 216 259.1 113.3 969.3 МEAN 7.4 30.9 a. Identify the regression line using the number of books read to predict ACT Reading score. Use a = .05 to evaluate the quality of the prediction of the regression line. b. What is the predicted ACT Reading score when 5 books are read?c) How many of the actors were in only one show? d) How many actors were in Rent but not in The Lion King?Calculus Chain rule diagram and equations with 3 intermediate variables and 4 final variables Chain rule diagram and equations with 4 intermediate variables and 4 final variables
- #444Match these values of r with the accompanying scatterplots: - 0.744, - 0.994, 1, 0.744, and – 0.386. Click the icon to view the scatterplots. Match the values of r to the scatterplots. Scatterplot 1, r = Scatterplot 2, r= Scatterplot 3, r = Scatterplot 4, r = Scatterplot 5, r=Beginning Inventory $11,500 Daily Alternative Purchases (+) $1,000 Produce Purchases (+) $550 Protein Purchases (+) $1,000 Dry Goods Purchases (+) $1,000 Total Available = $15,050 Ending Inventory (-) $10,900 Food Cost (COGS) (=) $4,100 Revenue (Sales) (+) $12,500 Food Cost % (=) 32.8% If the Revenue (sales) decreases and everything else remains the same, what happens to the Food Cost percentage? a. Food cost % increases because the ratio of food cost to revenue will be higher b. Food cost % decreases because the ratio of food cost to revenue will be higher c. Food cost % increases because the ratio of food cost to revenue will be lower d. Food cost % decreases because the ratio of food cost to revenue will be lower
- pls solve this need urgently will give you many upvotesSEPTEMI 4-30 5 1 Replace the ineg VI2.2 (31) Virulence and pathogen transmission The number of new infections produced by an individual infected with a pathogen such as influenza depends on the mortality rate that the pathogen causes. This pathogen-induced mortality rate is referred to as the pathogen's virulence. (The photo shows victims at Camp Funston of the influenza epidemic of 1918.] Extremely high levels of virulence result in very little transmission because the infected individual dies before infecting other individuals. Under certain assumptions, the number of new infections N is related to virulence v by the function
- How does water flow through a sponge?Transition 30Match the problem with the hypothesis. Problem A B C U E A study wanted to see if people's weight changed on new drug. They weighed 6 people before and after the trial. The six before weights were 150, 160, 175, 162, 180, 240. The respective after weights are 142, 171, 162, 142, 171, 235. A study wanted to know if a new drug was affected weight differently then a drug in a previous study. In the previous study, the participants lost 15 pounds on average. In the new study, they sampled 60 people. The average weight lost was 18 pounds with a standard deviation of 9 pounds. A study wanted to compare the weight loss between two drugs. They sampled 60 people. 30 who took drug A and 30 who took drug B. With drug A the average weight loss was 15 pounds with a standard deviation of 8 pounds. With drug B the average weight loss was 18 pounds with a standard deviation of 9 pounds. A study wanted to compare the percentage of a certain town who planned to vote for candidate A to the national…
