Which phrase indicates a limit to the scientific accuracy of the experiment?

for the study of a particular drug, marcus proposes an experiment with a particular population. approximately 200,000 people in the united states take this drug. he started out with a sample size of 300 people. first, he conducts research on the medical history of the people in his study. he collects the information using reliable sources. he decides to repeat the experiment using a larger sample size

A sample size of 300 people.

Explanation:

The answer is "a sample size of 300 people".

Usually, the sample size has a significant impact on the accuracy of any study. If The sample size is larger, the result will be better. It is said here that the sample size was only 300 people. Marcus is necessarily indicating that he has a limited window of insight. It means it's showing the limitation of the study. If the sample size were larger than 300, the result would be more accurate.

For this reason, Marcus wants to repeat his research with larger sample size.

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.