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Author Question: The purpose of designing a randomized block experiment is to reduce the between-treatments variation ... (Read 33 times)

tth

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on: Jun 24, 2018
The purpose of designing a randomized block experiment is to reduce the between-treatments variation (SST) to more easily detect differences between the treatment means.
  Indicate whether the statement is true or false

Question 2

Assume that the control limits of an x chart are defined as 2.5 standard errors above and below the centerline. Calculate the probability that a sample mean falls outside the control limits when the process is in fact under control.


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mbcrismon

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

F

Answer to Question 2

P = P ( z  > 2.5) = P (z < -2.5) + P (z > 2.5) = 2(.50 - .4938) = .0124


tth

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

Viet Thy

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Reply 3 on: Yesterday
Wow, this really help

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