QUESTION 40 In the 1980s, a study linked coffee to a higher risk of heart disease and pancreatic cancer. In the early 1990s, studies showed that drinking coffee posed minimal health threats. However, in 1994, a study showed that pregnant women who drank 3 or more cups of tea daily may be at risk for miscarriage. In 1998, a study claimed that women who drank more than a half-cup of caffeinated tea every day may actually increase their fertility. In 1998, a study showed that over a lifetime, a few extra cups of coffee a day can raise blood pressure, heart rate, and stress. Which of the following reasons could explain why the studies are conflicting? O The researchers fabricated the studies. O The effect of caffeine changes over time. O No control group was used. O The sample size of the studies are too small.
QUESTION 40 In the 1980s, a study linked coffee to a higher risk of heart disease and pancreatic cancer. In the early 1990s, studies showed that drinking coffee posed minimal health threats. However, in 1994, a study showed that pregnant women who drank 3 or more cups of tea daily may be at risk for miscarriage. In 1998, a study claimed that women who drank more than a half-cup of caffeinated tea every day may actually increase their fertility. In 1998, a study showed that over a lifetime, a few extra cups of coffee a day can raise blood pressure, heart rate, and stress. Which of the following reasons could explain why the studies are conflicting? O The researchers fabricated the studies. O The effect of caffeine changes over time. O No control group was used. O The sample size of the studies are too small.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.EA: Extended Application Using Extrapolation To Predict Life Expectancy
Problem 7EA
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QUESTION 40
In the 1980s, a study linked coffee to a higher risk of heart disease and pancreatic cancer. In the early 1990s, studies showed that drinking
coffee posed minimal health threats, However, in 1994, a study showed that pregnant women who drank 3 or more cups of tea daily may be
at risk for miscarriage, In 1998, a study claimed that women who drank more than a half-cup of caffeinated tea every day may actually
increase their fertility. In 1998, a study showed that over a lifetime, a few extra cups of coffee a day can raise blood pressure, heart rate, and
stress. Which of the following reasons could explain why the studies are conflicting?
O The researchers fabricated the studies.
O The effect of caffeine changes over time.
O No control group was used.
O The sample size of the studies are too small.
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