OpenStax, Statistics §7.3 Using the Central Limit Theorem · Exercise 18 · Statistics · Sampling distributions

Using the Central Limit Theorem · Exercise 18

Find the middle 80 percent for the total amount of time 64 batteries last.

Its source prints no answer for this problem, so there's nothing to check against.

~8 minWritten answer · compare with the solution

OpenStax, Statistics · §7.3 Using the Central Limit Theorem · Exercise 18

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.