A scientist would like to test a new antibiotic\'s ability to treat stubborn bac

Question

A scientist would like to test a new antibiotic's ability to treat stubborn bacterial infections. He tests his hypothesis that antibiotic X will effectively treat an infection by bacteria C by infecting mice with bacteria C and treating them with antibiotic X. He then determines what percentage of the mice recovers from the infection. What is missing from his experimental design?

Question 7 options:

He is missing a control group of mice that did not receive the new antibiotic.

Nothing is missing—he has done everything he needs to do for this to be a successful experiment.

There are no variables in the experiment

He is missing an experimental group of mice that received a half dose of the new antibiotic.

He is missing a control group of mice that did not receive the new antibiotic.

Nothing is missing—he has done everything he needs to do for this to be a successful experiment.

There are no variables in the experiment

He is missing an experimental group of mice that received a half dose of the new antibiotic.

Explanation / Answer

in any experiment control is must otherwise you will never know that whether it's a effect of antibiotic or their immune response.

in this experiment he is missing a control group of mice that did not receive the new antibiotic.

apart from that he is also missing different doses.

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