Does sampling size matter?

Let's now double the sample size to 40. Many analytics professionals believe a sample size of 30 or more is large enough to get trustworthy descriptive stats.

This works if the original population distribution is roughly bell-shaped.

This exercise is part of the course

Introduction to Statistics in Google Sheets

Exercise instructions

In E3, calculate the mean of the first 40 samples.
In F3, calculate the standard deviation of the first 40 samples.
Create a histogram of the first 40 samples.

Hands-on interactive exercise

Turn theory into action with one of our interactive exercises