Read the following scenario.

Select all that apply.

A large American home improvement supplies retaile$$r sells tools,

$10$ points

construction products, and services. Customer satisfaction is regarded by the company as an important key performance indicator $($KPI$)$ and is presented in a dashboard that is accessible for the $320$ managers of the company's $560$ local stores. The data are collected, processed, and reported according to the steps below.

Identify the two steps that introduce significant risk of inaccurate data. Check all that apply.

A$.$ A customer's satisfaction is measured by a short questionnaire distributed by the local manager to a representative sample of the store's customers.

B$.$ The satisfaction scores are put into the company's management information system by the local manager.

C$.$ For each local store, the average score is automatically calculated.

D$.$ The local scores are automatically converted into an overall company average score.

E$.$ The local scores are presented in the company's dashboard and automatically assigned a RAG status: red $=$ below average, amber $=$ on average, green $=$ above average $.$