Unit 6 Stats Sampling Distributions for sample means

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6 Terms

1
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what symbol represents the true mean for sample means?

µ

2
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what symbol represent the true sample mean?

x̄

3
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what is the SD of sampling distribution for one sample?

σx̄=σ/√n

4
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What conditions must be met to use the SD formula?

10% condition

5
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when is the sampling distribution approximately normal?

if the population is approx normal or if CLT is met

6
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what is the z-score formula for sample means?

statmagic: one sample test of mean

z=x̄-µ/σ/√n