3.4 Activity: Sample size and sampling variability

Any time we have a sample, the results of that sample are always subject to uncertainty due to sampling variability. We can’t get rid of sampling variability. Instead, we try to decrease it as much as possible.

We’ve seen that we can decrease the sampling variability by increasing the sample size. Larger samples have less sampling variability.

In this activity, you’ll explore this further. Our research question is:

How much do we need to increase the sample size to cut the sampling variability in half?

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3.4: Sample size and sampling variabiltiy
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