Question

Suggested a probability distribution for modelling the sample mean under the following situations:

1. Sample size = 10, the population is normally distributed

2. Sample size = 10, the population is not normally distributed

3. Sample size = 100, the population is normally distributed

4. Sample size = 100, the population is not normally distributed

* If the model cannot be determined, define as "cannot be determined".

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Answer #1

sample size = 100, the population is normally distributed. option 3 is correct. when sample size is greater than 30 we can choose it has normally distributed population.

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