n a 2002 study conducted on 3000 Italian 15-year-old females, girls were asked how often they consume kale each week. Four years later, these answers were linked to the girls’ intelligence test scores as 19-year-olds. The study found that girls who consume kale at least once a week scored higher on the intelligence test. Is this an experiment or an observational study? Explain. What is the explanatory variable? What is the response variable?
n a 2002 study conducted on 3000 Italian 15-year-old females, girls were asked how often they consume kale each week. Four years later, these answers were linked to the girls’ intelligence test scores as 19-year-olds. The study found that girls who consume kale at least once a week scored higher on the intelligence test. Is this an experiment or an observational study? Explain. What is the explanatory variable? What is the response variable?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4BGP
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In a 2002 study conducted on 3000 Italian 15-year-old females, girls were asked how often they consume kale
each week. Four years later, these answers were linked to the girls’ intelligence test scores as 19-year-olds. The
study found that girls who consume kale at least once a week scored higher on the intelligence test.
Is this an experiment or an observational study? Explain.
What is the explanatory variable?
What is the response variable?
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