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Click the icon to view the data of wine quality and alcohol content. Construct a scatter plot. Choose the correct graph below. DA Q Q 40 0 15 ỏ 15 Alcohol Content (5) Alcohol Content (%) Alcohol Content (%) . For these data, bo =4.9 and b₁ = 0.2. Interpret the meaning of the slope, b₁, in this problem. Choose the correct answer below. A. The slope, b₁, implies that for each increase of 1 wine quality rating, the alcohol content is expected to increase by the value of b₁, in percentages. B. The slope, b₁, implies that for each increase of alcohol percentage of 1.0, the wine quality rating is expected to increase by the value of b.. C. The slope, b₁, implies that for each 0.2 percentage decrease in alcohol content, the wine should have an increase in its rating by 1. OD. The slope, b₁, implies that the alcohol content is equal to the value of b₁, in percentages. .Predict the mean wine quality for wines with an 12% alcohol content. =(Round to two decimal places as needed.) What conclusion can you reach based on the results of (a)-(c)? A. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 0.2. OB. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 4.9. OC. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 4.9. OB. Q Q OC L Q Q 1 10 Alcohol Content (%) Alcohol Content and Quality Rating Wine Alcohol Content (%) 1 9.0 9.8 2 3 9.4 10.9 10.7 10.8 11.5 11.3 11.4 12.2 12.5 12.8 4 5 6 7 8 O D. 9 10 11 12 Quality Rating 8 7 6 8 6 8 8 8 8 8 7 8 - X

Click the icon to view the data of wine quality and alcohol content. Construct a scatter plot. Choose the correct graph below. DA Q Q 40 0 15 ỏ 15 Alcohol Content (5) Alcohol Content (%) Alcohol Content (%) . For these data, bo =4.9 and b₁ = 0.2. Interpret the meaning of the slope, b₁, in this problem. Choose the correct answer below. A. The slope, b₁, implies that for each increase of 1 wine quality rating, the alcohol content is expected to increase by the value of b₁, in percentages. B. The slope, b₁, implies that for each increase of alcohol percentage of 1.0, the wine quality rating is expected to increase by the value of b.. C. The slope, b₁, implies that for each 0.2 percentage decrease in alcohol content, the wine should have an increase in its rating by 1. OD. The slope, b₁, implies that the alcohol content is equal to the value of b₁, in percentages. .Predict the mean wine quality for wines with an 12% alcohol content. =(Round to two decimal places as needed.) What conclusion can you reach based on the results of (a)-(c)? A. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 0.2. OB. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 4.9. OC. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 4.9. OB. Q Q OC L Q Q 1 10 Alcohol Content (%) Alcohol Content and Quality Rating Wine Alcohol Content (%) 1 9.0 9.8 2 3 9.4 10.9 10.7 10.8 11.5 11.3 11.4 12.2 12.5 12.8 4 5 6 7 8 O D. 9 10 11 12 Quality Rating 8 7 6 8 6 8 8 8 8 8 7 8 - X

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The production of wine is a multibillion-dollar worldwide industry. In an attempt to develop a model of wine quality as judged by wine experts, data was collected from red wine variants of a certain type of wine. A sample of 12 wines is given. Develop a simple linear regression model to predict wine quality, measured on a scale from 0 (very bad) to 10 (excellent), based on alcohol content (%). Complete parts (a) through (d) below. Click the icon to view the data of wine quality and alcohol content. a. Construct a scatter plot. Choose the correct graph below. A. O D. A 0 15 0 15 0 40 Alcohol Content (%) Alcohol Content (%) Alcohol Content (%) b. For these data, bo = 4.9 and b₁ = 0.2. Interpret the meaning of the slope, b₁, in this problem. Choose the correct answer below. X A. The slope, b₁, implies that for each increase of 1 wine quality rating, the alcohol content is expected to increase by the value of b₁, in percentages. B. The slope, b₁, implies that for each increase of alcohol percentage of 1.0, the wine quality rating is expected to increase by the value of b₁. C. The slope, b₁, implies that for each 0.2 percentage decrease in alcohol content, the wine should have an increase in its rating by 1. D. The slope, b₁, implies that the alcohol content is equal to the value of b₁, in percentages. c. Predict the mean wine quality for wines with an 12% alcohol content. Ŷ₁ = (Round to two decimal places as needed.) d. What conclusion can you reach based on the results of (a)-(c)? A. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 0.2. B. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 4.9. C. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 4.9. D. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 0.2. Wine Quality Rating 10- O Wine Quality Rating B. 40- 0- N Wine Quality Rating 15- N 23ASONS IN 19 0 10 Alcohol Content (%) Alcohol Content and Quality Rating Wine Alcohol Content (%) 1 9.0 9.8 9.4 10.9 10.7 10.8 11.5 11.3 11.4 12.2 12.5 12.8 Print 4 5 6 7 8 9 10 11 Wine Quality Rating 12 15- N Quality Rating 8 7 6 8 6 8 8 8 8 8 Done
Transcribed Image Text:The production of wine is a multibillion-dollar worldwide industry. In an attempt to develop a model of wine quality as judged by wine experts, data was collected from red wine variants of a certain type of wine. A sample of 12 wines is given. Develop a simple linear regression model to predict wine quality, measured on a scale from 0 (very bad) to 10 (excellent), based on alcohol content (%). Complete parts (a) through (d) below. Click the icon to view the data of wine quality and alcohol content. a. Construct a scatter plot. Choose the correct graph below. A. O D. A 0 15 0 15 0 40 Alcohol Content (%) Alcohol Content (%) Alcohol Content (%) b. For these data, bo = 4.9 and b₁ = 0.2. Interpret the meaning of the slope, b₁, in this problem. Choose the correct answer below. X A. The slope, b₁, implies that for each increase of 1 wine quality rating, the alcohol content is expected to increase by the value of b₁, in percentages. B. The slope, b₁, implies that for each increase of alcohol percentage of 1.0, the wine quality rating is expected to increase by the value of b₁. C. The slope, b₁, implies that for each 0.2 percentage decrease in alcohol content, the wine should have an increase in its rating by 1. D. The slope, b₁, implies that the alcohol content is equal to the value of b₁, in percentages. c. Predict the mean wine quality for wines with an 12% alcohol content. Ŷ₁ = (Round to two decimal places as needed.) d. What conclusion can you reach based on the results of (a)-(c)? A. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 0.2. B. Alcohol percentage appears to be affected by the wine quality. Each increase of 1 in quality leads to a mean increase in alcohol of about 4.9. C. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 4.9. D. Wine quality appears to be affected by the alcohol percentage. Each increase of 1% in alcohol leads to a mean increase in wine quality of about 0.2. Wine Quality Rating 10- O Wine Quality Rating B. 40- 0- N Wine Quality Rating 15- N 23ASONS IN 19 0 10 Alcohol Content (%) Alcohol Content and Quality Rating Wine Alcohol Content (%) 1 9.0 9.8 9.4 10.9 10.7 10.8 11.5 11.3 11.4 12.2 12.5 12.8 Print 4 5 6 7 8 9 10 11 Wine Quality Rating 12 15- N Quality Rating 8 7 6 8 6 8 8 8 8 8 Done
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