Lemma
MediumSampling distributions
OpenStax, Statistics §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 13 · Statistics · Sampling distributions

The Central Limit Theorem for Sums (Optional) · Exercise 13

A researcher measures the amount of sugar in several cans of the same type of soda. The mean is 39.01 with a standard deviation of 0.5. The researcher randomly selects a sample of 100.

Find the sum with a z-score of –2.5.

~8 minWritten answer · compare with the solution

OpenStax, Statistics · §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 13

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.