Calculating Standard Error of the Mean
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Objective
I can calculate the standard error of the mean to estimate the precision of a sample mean.
Part 1 of 4
Warm-up video
Bozeman Science · 7:05Vetted channel
We don't generate video — this one is by Bozeman Science on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Standard error is a statistic that indicates the precision of your data.
- 2
Standard error is calculated by dividing the standard deviation by the square root of the sample size.
- 3
A smaller standard error indicates more precise data, while a larger standard error suggests less precise data.
Part 3 of 4
Practice
3 questions
What two statistical values are used to calculate the standard error of the mean?
Why is it important to include error bars, calculated using the standard error of the mean, on a bar graph representing data?
Part 4 of 4
Exit ticket
Quick comprehension check
“A biologist measures the weights of 16 frogs and finds the standard deviation of the weights to be 2 grams. Calculate the standard error of the mean for this sample.”
Sample answer included in the free materials
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