Please answer all of the questions in the picture please. What is the most important aspect to include in a study in order to obtain a sample that is trulyrepresentative of the population?Ensuring the data are categoricalO A very large sample sizeO Ensuring the data are quantitativeRandomizationOUsing an experiment instead of an observational studyQuestion 10LO DetailsWhat is the key difference between an experiment and an observational study?Only observational studies require randomization.We can only perform observational studies on people.Only experiments impose a treatment to the subjects.Only experiments can have an explanatory and response variable.There is no difference. Experiments and observational studies are two terms that mean thesame thing. What is a lurking variable?O A scary variable.O A variable that scientists ignore because of ethical issues in the study.A variable that we aren't measuring or controlling, but may influence the outcome of aresponse variable, and possibly the explanatory variable.O A variable that we are controlling in an experiment so that it doesn't have an effect on ourresponse variable.O A variable that may result in the placebo effect.

As per the Bartleby guildlines we have to solve first question and rest can be reposted.... The…

What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study

What is the most important aspect to include in a study in order to obtain a sample that is truly representative of the population? Ensuring the data are categorical O A very large sample size O Ensuring the data are quantitative Randomization OUsing an experiment instead of an observational study

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Please answer all of the questions in the picture please.

What is the most important aspect to include in a study in order to obtain a sample that is truly
representative of the population?
Ensuring the data are categorical
O A very large sample size
O Ensuring the data are quantitative
Randomization
OUsing an experiment instead of an observational study
Question 10
LO Details
What is the key difference between an experiment and an observational study?
Only observational studies require randomization.
We can only perform observational studies on people.
Only experiments impose a treatment to the subjects.
Only experiments can have an explanatory and response variable.
There is no difference. Experiments and observational studies are two terms that mean the
same thing.

What is a lurking variable?
O A scary variable.
O A variable that scientists ignore because of ethical issues in the study.
A variable that we aren't measuring or controlling, but may influence the outcome of a
response variable, and possibly the explanatory variable.
O A variable that we are controlling in an experiment so that it doesn't have an effect on our
response variable.
O A variable that may result in the placebo effect.

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