OpenStax, Introductory Statistics 2e §7.2 The Central Limit Theorem for Sums · Exercise 3 · Statistics · Sampling distributions
The Central Limit Theorem for Sums · Exercise 3
An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population.
Find the sum that is two standard deviations above the mean of the sums.
OpenStax, Introductory Statistics 2e · §7.2 The Central Limit Theorem for Sums · Exercise 3
Stuck? A gentle nudge
No hints for this one.
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.