Lemma
MediumSampling distributions
OpenStax, Introductory Statistics 2e §7.3 Using the Central Limit Theorem · Exercise 13 · Statistics · Sampling distributions

Using the Central Limit Theorem · Exercise 13

The length of time a particular smartphone's battery lasts follows an exponential distribution with a mean of ten months. A sample of 64 of these smartphones is taken.

What is the distribution for the mean length of time 64 batteries last?

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OpenStax, Introductory Statistics 2e · §7.3 Using the Central Limit Theorem · Exercise 13

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