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In a sample of 500 nurses, half were randomly given a placebo and halfwere randomly given a new drug for migraines.Observational study or randomized experiment (circle one)?Explain:

In a sample of 500 nurses half were randomly given a placebo and halfwere randomly given a new drug for migrainesObservational study or randomized experiment ci class=

Respuesta :

Given:

Total nurses = 500

Half were randomly given a placebo and half were randomly given a new drug

Find-:

Observational study or randomized experiment

Explanation-:

If half randomly placebo

That means 250 nurses with placebo and 250 nurses with new drug

So,

It is an observational study

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