A study discusses a colon cancer screening program that began in a certain count

Question

A study discusses a colon cancer screening program that began in a certain country in 1996 and was expanded geographically through 2005. The people in the study were offered screenings every two years. The goal of the study was to compare incidence-based rates of death from colon cancer across four groups. Data were analyzed for 55,888 people. Rates of death were reduced in the screening group as compared to the historical screening group, and also in the non group as compared to the historical nonscreening group. Complete parts a through c below. screening Click the icon to view the four groups. a. Is this an observational or experimental study? O A. The study is an experiment because none of the variables are controlled by the researchers. O B. The study is an observational study because at least one of the variables is controlled by the researchers. O C. The study is an experiment because at least one of the variables is controlled by the researchers. o D. The study is an observational study because none of the variables are controlled by the researchers. b. Identify the response variable and the explanatory variable. The response variable is Y and the explanatory variable is c. Does the study prove es a reduction in death rates associated with colon cancer? screening program O A. No, it is unlikely th death from colon cancer O B. No, a lurking varia variables. o C. Yes, there is anecdotal evidence connecting the two variables. O D. Yes, the study found an association between the two variables.

Explanation / Answer

B ) Ans: The response variable is death from colon cancer and explanatory variable is screening program

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