On day 26, I learned about a key element that affects the data process, and that is called estimated response ratio. The ratio indicates the number we will need to target to get accurate data.
At first, I did not consider this, but it makes sense because not all respondents reply. That reminds me of an interesting event that happened today, which was about a beverage company asking me to try out their new beverage flavor.
At that time, I was thinking what kind of data are they trying to collect and what was their estimated sample size.