OpenStax, Introductory Statistics 2e §7.2 The Central Limit Theorem for Sums · Exercise 2 · Statistics · Sampling distributions
The Central Limit Theorem for Sums · Exercise 2
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 probability that the sum of the 95 values is less than 7,400.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Introductory Statistics 2e · §7.2 The Central Limit Theorem for Sums · Exercise 2
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