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Author Question: A random sampling of sixty pitchers from the National League and fifty-two pitchers from the ... (Read 78 times)

clippers!

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A random sampling of sixty pitchers from the National League and fifty-two pitchers from the American League showed that 11 National and 13 American League pitchers had E.R.A's below 3.5.
 
  A) z = -51.583 B) z = -0.857 C) z = -1.114 D) z = -4.320

Question 2

The area under the standard normal curve between 1 and 2 is equal to 0.1359. Scores on a particular aptitude test are normally distributed with a mean of 100 and a standard deviation of 10. Which of the following are equal to 13.59?
 
  a.
 
  The percentage of scores between 120 and 130
  b. The percentage of scores between 110 and 120
  c. The percentage of scores between 80 and 90
  d. The percentage of scores between 90 and 120
  e. The percentage of scores between 90 and 110
  A) a, b B) b C) b, c D) e



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joshraies

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Answer to Question 1

B

Answer to Question 2

C




clippers!

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Reply 2 on: Jul 25, 2018
Gracias!


Dinolord

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Reply 3 on: Yesterday
Wow, this really help

 

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