Question

Determine whether the study depicts an observational study or an experiment. While shopping, 200 people are asked to perform a taste test in which they drink from two unmarked cups. They are then asked which drink they prefer.

Name: Problem 14, Chapter 1: Fundamentals of Statistics
Uploaded: 2021-06-22T22:08:45-08:00
Duration: 1 min 12 s
Channel: Harsh Gadhiya
Description: Determine whether the study depicts an observational study or an experiment. While shopping, 200 people are asked to perform a taste test in which they drink from two unmarked cups. They are then asked which drink they prefer.

   Determine whether the study depicts an observational study or an experiment.
While shopping, 200 people are asked to perform a taste test in which they drink from two unmarked cups. They are then asked which drink they prefer.

Fundamentals of Statistics

Michael Sullivan III 5th Edition

Chapter 1, Problem 14

Instant Answer

Solved by Expert Harsh Gadhiya

06/22/2021

Step 1

In an observational study, researchers observe and measure characteristics without trying to modify the subjects being studied. In an experiment, researchers apply treatments to experimental units (people, animals, plots of land, etc.) and then proceed to observe Show more…

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Determine whether the study depicts an observational study or an experiment. While shopping, 200 people are asked to perform a taste test in which they drink from two unmarked cups. They are then asked which drink they prefer.

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Key Concepts

Observational Study

An observational study is a research design where the investigator collects data without manipulating any variables, instead simply observing and recording information about subjects in their natural environments. In such studies, the researcher does not assign treatments or conditions, which limits the ability to establish cause-and-effect relationships.

Experiment

An experiment is a research design in which the investigator actively intervenes by assigning treatments or conditions to subjects, usually through random assignment. This deliberate manipulation allows the researcher to control for confounding variables and establish causal relationships between the treatment and the observed outcomes.

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