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Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because information was collected about a group of individuals because it because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. OA. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables tha were not considered in a study, but that affect the value of the response variable. OB. The researchers thought that genetics had greater influence than level of trauma. OC. It is not important to adjust for explanatory variables.

Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because information was collected about a group of individuals because it because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. OA. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables tha were not considered in a study, but that affect the value of the response variable. OB. The researchers thought that genetics had greater influence than level of trauma. OC. It is not important to adjust for explanatory variables.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a because information was collected about a group of individuals (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because it B. O C. because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that a common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. O A. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables that were not considered in a study, but that affect the value of the response variable. The researchers thought that genetics had greater influence than level of trauma. t is not important to adjust for explanatory variables.
Transcribed Image Text:Researchers wanted to determine if there was an association between the level of trauma of an individual and their risk of lung cancer. The researchers studied 1924 people over the course of 7 years. During this 7-year period, they interviewed the individuals and asked questions about their daily lives and the hassles they face. In addition, hypothetical scenarios were presented to determine how each individual would handle the situation. These interviews were videotaped and studied to assess the emotions of the individuals. The researchers also determined which individuals in the study experienced any type of lung cancer over the 7-year period. After their analysis, the researchers concluded that the trauma-free individuals were less likely to experience lung cancer. Complete parts (a) through (c). (a) What type of observational study was this? Explain. This was a because information was collected about a group of individuals (b) What is the response variable? What is the explanatory variable? The response variable is The explanatory variable is because it B. O C. because it (c) In the report, the researchers stated that "the research team also hasn't ruled out that a common factor like genetics could be causing both the emotions and the lung cancer." Explain what this sentence means. Choose the correct answer below. O A. The researchers may be concerned with confounding that occurs when the effects of two or more explanatory variables are not separated or when there are some explanatory variables that were not considered in a study, but that affect the value of the response variable. The researchers thought that genetics had greater influence than level of trauma. t is not important to adjust for explanatory variables.
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