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Author Question: The sign test evaluates the randomness of a series of observations by analyzing the number of ... (Read 83 times)

tatyanajohnson

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on: Aug 1, 2018
The sign test evaluates the randomness of a series of observations by analyzing the number of consecutive data values that are similar.
  Indicate whether the statement is true or false

Question 2

Grades for a statistics exam for a certain class follow the normal probability distribution with a mean of 82 and a standard deviation of 12 . What percentage of the students in the class earned a B grade (80-89)?


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rekilledagain

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Reply #1 on: Aug 1, 2018
Answer to Question 1

F

Answer to Question 2

0.2865


tatyanajohnson

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Reply 2 on: Aug 1, 2018
Gracias!

nathang24

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Reply 3 on: Yesterday
Wow, this really help

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