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Author Question: Explain why a nonparametric test is not as sensitive to an extreme datum as a parametric test might ... (Read 49 times)

lindiwe

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on: Jul 24, 2018
Explain why a nonparametric test is not as sensitive to an extreme datum as a parametric test might be.

Question 2

A random variable x is normally distributed with a mean of 250 and a standard deviation of 50 . Given that x = 175, its corresponding z-score is 1.50.
  Indicate whether the statement is true or false


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sarah_brady415

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Reply #1 on: Jul 24, 2018
Answer to Question 1

The extreme value in a set of data can have a sizeable effect on the mean and standard deviation in the parametric methods. The nonparametric methods typically use rank numbers. The extreme value with ranks is either 1 or n, and neither changes if the value is more extreme.

Answer to Question 2

T


lindiwe

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Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

smrtceo

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Reply 3 on: Yesterday
:D TYSM

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