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Exercise 18

Avg difficulty 2.5

A team of researchers is testing the effectiveness of a new vaccine for human papilloma virus (HPV). They randomly divide the subjects into two groups. Group 1 receives new HPV vaccine, and Group 2 receives the existing HPV vaccine. The patients in the study do not know which group they are in.

  1. Which is the treatment group?

  2. Which is the control group (if there is one)?

  3. Is this study blind, double-blind, or neither?

  4. Is this best described as an experiment, a controlled experiment, or a placebo-controlled experiment?

Lee et al., Math in Society, §3.1 Overview of the Statistical Process, Exercise 18

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Adapted from Math in Society © 2018–2024 Portland Community College Math Instructors. Licensed under CC BY-SA 4.0. Source: Math in Society. Imported at revision 68ee43c.