Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

CT scanning lung cancer. University of South Florida clinical trial of 50,000 sm

ID: 2955765 • Letter: C

Question

CT scanning lung cancer. University of South Florida clinical trial of 50,000 smokers was carried out to compare the effectiveness of CT scans with X-rays for detecting lung cancer. (Today's Tomorrows Fall 2002.) Each participating smoker was randomly assigned to one of two screening methods, CT or chest X-ray, and the age (in years) at which the scanning method first detects a tumor was to be determined. One goal of the study is to compare the mean ages when cancer is first detected of the two screening methods.

Match the given definitions with the statements:

1) a smoker
2).Tumor and age
3).a non smoker
4)50,000 non smokers
5)CT X-ray
6)The age the scanning method first detects tumor
7)Both completely randomized and randomized block design.
8)Tumor
9)The age patient is healed
10)CT X-ray,chest X-ray or age
11)CT or Chest X-ray
12)Randomized design
13) Completely Randomized design
14)Screening method and tumor
15) Chest X-ray
16) screening method
17)50,000 smokers
18) Lung Cancer

Statement:
a.The response variable of the study is;(choose from option 1-18)
b.The experimental unit(s) of the study is/are;(choose from option 1-18 above)
c.The factor(s) in the study is/are;
d.The treatment(s) in the study is/are;
e.The type of design that experiment utilizes is;

Explanation / Answer

b) The experimental units are CT or chest X-ray. c) The factors in the study are the two-screening methods. d) The treatments in the study are 50,000 smokers.