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londonblanco

  • one year ago

Consider a normal population with µ = 25 and σ = 8.0. (A) Calculate the standard score for a value x of 22. (B) Calculate the standard score for a randomly selected sample of 45 with = 22. (C) Explain why the standard scores of 22 are different between A and B above I figure solution to A. is 25 - 22 / 7 = 0.428 but I dont have any idea how to work out the rest, help?

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  1. kropot72
    • one year ago
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    (A) \[z=\frac{X-\mu}{\sigma}=\frac{22-25}{8}=you\ can\ calculate\]

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