OpenStax, Introductory Statistics 2e §7.3 Using the Central Limit Theorem · Exercise 38 · Statistics · Sampling distributions
Using the Central Limit Theorem · Exercise 38
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $44,000 and a standard deviation of $6,500. We randomly survey ten teachers from that district.
(a) Find the 90^th percentile for an individual teacher’s salary.
(b) Find the 90^th percentile for the average teacher’s salary.
OpenStax, Introductory Statistics 2e · §7.3 Using the Central Limit Theorem · Exercise 38
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.