Because you will often have less than perfectly valid data with which to work, $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_.$ Select the one best answer.

Question $35$ options:

It will be necessary to make your calculations twice

It is important to avoid absolute certainty in your conclusions based on those data

It is important to use smaller sample sizes

It is important to delegate the decision$-$making responsibility to someone else

All of the above