Why is it important to avoid a smaller sample size?

The importance of sample size calculation cannot be overemphasized. A research can be conducted for various objectives. A smaller sample will give a result which may not be sufficiently powered to detect a difference between the groups and the study may turn out to be falsely negative leading to a type II error.

It is not necessarily important to avoid smaller sample sizes but if is way more beneficial if you collect a larger sample size.

Step-by-step explanation:

Later sample sizes help you to get a more accurate result. While smaller sample sizes are less reliable. Hope I helped sorry if not! Have a wonderful day!

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.