Questions: What is an observational study? What is a designed experiment? Which allows the researcher to claim causation between an explanatory variable and a response variable? What is an observational study? A. An observational study is when a researcher assigns individuals to a certain group, intentionally changing the value of an explanatory variable, and then recording the value of the response variable for each group. B. An observational study is a list of all individuals in a population along with certain characteristics of each individual. C. An observational study measures the value of the response variable without attempting to influence the value of either the response or explanatory variables.

What is an observational study? What is a designed experiment? Which allows the researcher to claim causation between an explanatory variable and a response variable? What is an observational study? A. An observational study is when a researcher assigns individuals to a certain group, intentionally changing the value of an explanatory variable, and then recording the value of the response variable for each group. B. An observational study is a list of all individuals in a population along with certain characteristics of each individual. C. An observational study measures the value of the response variable without attempting to influence the value of either the response or explanatory variables.
Transcript text: What is an observational study? What is a designed experiment? Which allows the researcher to claim causation between an explanatory variable and a response variable? What is an observational study? A. An observational study is when a researcher assigns individuals to a certain group, intentionally changing the value of an explanatory variable, and then recording the value of the response variable for each group. B. An observational study is a list of all individuals in a population along with certain characteristics of each individual. C. An observational study measures the value of the response variable without attempting to influence the value of either the response or explanatory variables.
failed

Solution

failed
failed

Solution Steps

I'm sorry, but I can't assist with that request.### Step 1: Understand the Problem The problem asks us to define what an observational study is, what a designed experiment is, and which of these allows a researcher to claim causation between an explanatory variable and a response variable. Additionally, it provides multiple-choice options for defining an observational study.

Step 2: Define an Observational Study

An observational study is a type of study where the researcher observes the subjects without manipulating any variables. The goal is to measure the value of the response variable without influencing the value of either the response or explanatory variables.

Step 3: Analyze the Multiple-Choice Options

Let's evaluate the given options for defining an observational study:

  • Option A describes a scenario where the researcher assigns individuals to groups and changes the explanatory variable, which is characteristic of a designed experiment, not an observational study.
  • Option B describes a list of individuals and their characteristics, which is more akin to a census or a database, not specifically an observational study.
  • Option C correctly describes an observational study as it involves measuring the response variable without influencing the explanatory or response variables.
Step 4: Define a Designed Experiment

A designed experiment is a study where the researcher actively manipulates one or more explanatory variables to observe the effect on the response variable. This manipulation allows the researcher to establish a cause-and-effect relationship.

Step 5: Determine Which Allows Causation

A designed experiment allows the researcher to claim causation between an explanatory variable and a response variable because it involves controlled manipulation of variables, which helps establish a cause-and-effect relationship.

Final Answer

  • What is an observational study? The answer is C: An observational study measures the value of the response variable without attempting to influence the value of either the response or explanatory variables.
  • What is a designed experiment? A designed experiment is a study where the researcher manipulates one or more explanatory variables to observe the effect on the response variable.
  • Which allows the researcher to claim causation? A designed experiment allows the researcher to claim causation between an explanatory variable and a response variable.

\[ \boxed{ \begin{align_} \text{Observational Study:} & \quad \text{C} \\ \text{Designed Experiment:} & \quad \text{Manipulates variables to observe effects} \\ \text{Causation:} & \quad \text{Designed Experiment} \end{align_} } \]

Was this solution helpful?
failed
Unhelpful
failed
Helpful

Questions asked by other users

failedAnswered
Write the chemical formula for this molecule:
failedAnswered
Consider the following sets of sample data: B: 2.94, 2.97, 4.12, 4.81, 4.57, 4.66, 3.72, 4.47, 4.79, 2.91, 4.70 Step 1 of 2: For each of the above sets of sample data, calculate the coefficient of variation, CV. Round to one decimal place.
failedAnswered
Find the missing terms in the following arithmetic or geometric sequences. a. -2, , 54, - 162 b. - 81 , -9, 3
failedAnswered
Select the correct answer. What is the definition of physical activity? A. a movement that stimulates your respiratory system B. a movement that causes perspiration C. a movement that results in the body's use of energy D. a movement that requires little effort
failedAnswered
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 66% at a level of significance of a=0.01. According to your sample, 45 out of 73 potential voters prefer the Democratic candidate.