7.2 Sampling Distribution of the Mean (Updated)

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0:22 Overview of Sampling Distribution
3:12 Central Limit Theorem
4:40 z-Value for Sampling Distribution (Standardizing)
5:40 Practice Problem 7.2.23
10:00 Excel Demo of 7.2.23
  1. Professor Ngo
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Комментарии
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@9:40 ... cumulative (true) means Excel is adding all the probabilities to the LEFT. That is why you need to subtract it from 1 to get all the probabilities to the RIGHT. You should put a correction in this video.

wooddog
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note to self: theorem 1: studying the mean of a sample is the same as the mean of the entire population central Limit theorem: for any sample size, it eventually reaches a normal distribution if the sample population is large enough

shaunlorenztan
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in z equation, sigma/square root of n is the srandard error

shaunlorenztan