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Temperature and Age Babies First Crawl 36 34 32 30 28 26 24 22 20 30 40 50 60 70 80 Average Monthly Temperature (°F) :-0.0777(temperature) + 35.7 • The line of best fit: crawling age • Correlation coefficient: -0.7 • Average crawling age: 31.77 Which statement represents a valid conclusion and justification that the researchers can make as a result of the study? A. Since the correlation coefficient is less than 0, there is insufficient evidence to conclude causation or correlation for this study. B. The average crawling age of 31.77 weeks provides evidence that warmer temperatures at the time a baby is six months old cause the baby to crawl earlier. C. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. This correlation between the two variables implies that there is a cause-and-effect relationship between the two. D. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. While there is a correlation between the two variables, that does not imply there is a cause-and- effect relationshin between the twO Average Crawling Age (weeks)

Temperature and Age Babies First Crawl 36 34 32 30 28 26 24 22 20 30 40 50 60 70 80 Average Monthly Temperature (°F) :-0.0777(temperature) + 35.7 • The line of best fit: crawling age • Correlation coefficient: -0.7 • Average crawling age: 31.77 Which statement represents a valid conclusion and justification that the researchers can make as a result of the study? A. Since the correlation coefficient is less than 0, there is insufficient evidence to conclude causation or correlation for this study. B. The average crawling age of 31.77 weeks provides evidence that warmer temperatures at the time a baby is six months old cause the baby to crawl earlier. C. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. This correlation between the two variables implies that there is a cause-and-effect relationship between the two. D. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. While there is a correlation between the two variables, that does not imply there is a cause-and- effect relationshin between the twO Average Crawling Age (weeks)

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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You may use a calculator for this item. To investigate whether air temperature influences the age at which a baby learns to crawl, researchers conducted a study of 414 babies. The graph and accompanying statistics provide information about the average monthly temperature, in degrees Fahrenheit (F), when a baby was six months old and the average age, in weeks, when the baby first started to crawl. Temperature and Age Babies First Crawl 36 34 32 30 28 24 22 20 30 40 50 60 70 80 Average Monthly Temperature (OF) • The line of best fit: crawling age =-0.0777(temperature) + 35.7 • Correlation coefficient: –0.7 • Average crawling age: 31.77 Which statement represents a valid conclusion and justification that the researchers can make as a result of the study? A. Since the correlation coefficient is less than 0, there is insufficient evidence to conclude causation or correlation for this study. B. The average crawling age of 31.77 weeks provides evidence that warmer temperatures at the time a baby is six months old cause the baby to crawl earlier. C. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. This correlation between the two variables implies that there is a cause-and-effect relationship between the two. D. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. While there is a correlation between the two variables, that does not imply there is a cause-and- effect relationship between the two. Average Crawling Age (weeks)
Transcribed Image Text:You may use a calculator for this item. To investigate whether air temperature influences the age at which a baby learns to crawl, researchers conducted a study of 414 babies. The graph and accompanying statistics provide information about the average monthly temperature, in degrees Fahrenheit (F), when a baby was six months old and the average age, in weeks, when the baby first started to crawl. Temperature and Age Babies First Crawl 36 34 32 30 28 24 22 20 30 40 50 60 70 80 Average Monthly Temperature (OF) • The line of best fit: crawling age =-0.0777(temperature) + 35.7 • Correlation coefficient: –0.7 • Average crawling age: 31.77 Which statement represents a valid conclusion and justification that the researchers can make as a result of the study? A. Since the correlation coefficient is less than 0, there is insufficient evidence to conclude causation or correlation for this study. B. The average crawling age of 31.77 weeks provides evidence that warmer temperatures at the time a baby is six months old cause the baby to crawl earlier. C. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. This correlation between the two variables implies that there is a cause-and-effect relationship between the two. D. The correlation coefficient of -0.7 and accompanying graph provide evidence that there is a moderately strong, negative, linear relationship between average monthly temperature and the average crawling age of babies. While there is a correlation between the two variables, that does not imply there is a cause-and- effect relationship between the two. Average Crawling Age (weeks)
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