In the context of data preparation, a power calculation helps determine
A) if any data observations have a considerable distance to other data clusters.
B) whether an existing, valuable customer is likely to leave the business.
C) the what, when, and who of the analysis.
D) what outcomes will be estimated from a sample with a sufficient level of precision.

Question

Quizplus · Accepted Answer

A power calculation is used in the context of statistical analysis to determine the sample size required to detect an effect of a given size with a certain degree of confidence. It ensures that the study can achieve a sufficient level of precision in estimating outcomes.

In the Context of Data Preparation, a Power Calculation Helps