Lesson pack

Sampling and CLT pack

A sampling unit is a lumpy population, a sample size you can slide, and a margin of error. Put these three on one class page.

Copy each snippet onto one class page. The front door is widgets. Host steps: Google Sites. Classroom notes: teachers.

• Sampling distribution and CLT

  Pick a lumpy parent population, slide the sample size, draw thousands of samples, and watch the distribution of sample means turn normal and narrow by root n.

  <iframe src="https://www.statslearn.org/embed/sampling-distribution-clt" width="100%" height="560" style="border:0" title="Sampling distribution and CLT" ></iframe> <p style="font:14px/1.5 system-ui,sans-serif;margin:.5rem 0 0"> <a href="https://www.statslearn.org/interactives/sampling-distribution-clt?utm_source=embed&utm_medium=referral&utm_campaign=embed-interactives">Sampling distribution and CLT</a> by <a href="https://www.statslearn.org/?utm_source=embed&utm_medium=referral&utm_campaign=embed-interactives">StatsLearn</a> </p>Copy embed code

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• Sample size calculator

  Find the sample size for a target margin of error. For a proportion, n = (z*/ME)^2 times p*(1-p*) with p* = 0.5; round up. Worked AP examples.

  <iframe src="https://www.statslearn.org/embed/sample-size-calculator" width="100%" height="520" style="border:0" title="Sample size calculator" ></iframe> <p style="font:14px/1.5 system-ui,sans-serif;margin:.5rem 0 0"> <a href="https://www.statslearn.org/calculators/sample-size-calculator?utm_source=embed&utm_medium=referral&utm_campaign=embed-calculators">Sample size calculator</a> by <a href="https://www.statslearn.org/?utm_source=embed&utm_medium=referral&utm_campaign=embed-calculators">StatsLearn</a> </p>Copy embed code

  Widget page

• Margin of error calculator

  Margin of error is a critical value times the standard error. Learn the proportion formula ME = z*sqrt(p-hat(1-p-hat)/n) with a worked poll example.

  <iframe src="https://www.statslearn.org/embed/margin-of-error-calculator" width="100%" height="520" style="border:0" title="Margin of error calculator" ></iframe> <p style="font:14px/1.5 system-ui,sans-serif;margin:.5rem 0 0"> <a href="https://www.statslearn.org/calculators/margin-of-error-calculator?utm_source=embed&utm_medium=referral&utm_campaign=embed-calculators">Margin of error calculator</a> by <a href="https://www.statslearn.org/?utm_source=embed&utm_medium=referral&utm_campaign=embed-calculators">StatsLearn</a> </p>Copy embed code

  Widget page