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Author Question: At a computer manufacturing company, the actual size of computer chips is normally distributed with ... (Read 130 times)

OSWALD

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on: Jun 24, 2018
At a computer manufacturing company, the actual size of computer chips is normally distributed with a mean of 1 centimeter and a standard deviation of 0.1 centimeter. A random sample of 12 computer chips is taken. Above what value do 2.5 of the sample means fall?
 
  What will be an ideal response?

Question 2

If a particular set of data is approximately normally distributed, we would find that approximately
 
  A) 4 of every 5 observations would fall between 1.28 standard deviations around the mean.
  B) 19 of every 20 observations would fall between 2 standard deviations around the mean.
  C) 2 of every 3 observations would fall between 1 standard deviation around the mean.
  D) All of the above.


jointhecircus

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

1.057

Answer to Question 2

D


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