Lemma
MediumSampling distributions
OpenStax, Introductory Business Statistics 2e §7.4 Finite Population Correction Factor · Exercise 4 · Statistics · Sampling distributions

Finite Population Correction Factor · Exercise 4

Cars pass an automatic speed check device that monitors 2,000 cars on a given day. This population of cars has an average speed of 67 miles per hour with a standard deviation of 2 miles per hour. If samples of 30 cars are taken, what is the probability a given sample will have an average speed within 0.50 mile per hour of the population mean?

~8 minWritten answer · compare with the solution

OpenStax, Introductory Business Statistics 2e · §7.4 Finite Population Correction Factor · Exercise 4

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.