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Author Question: The critical value for a one-tail (upper) hypothesis test when the population standard deviation is ... (Read 92 times)

Redwolflake15

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The critical value for a one-tail (upper) hypothesis test when the population standard deviation is known, the sample size is 30 or more, and  = 0.02 is ________.
 
  A) 2.05
  B) 2.33
  C) 2.575
  D) 2.96

Question 2

Assume that the flight time for a United Airlines flight from Philadelphia to Dallas follows the uniform probability distribution between 210 and 250 minutes. What is the standard deviation of this distribution?
 
  A) 5.23
  B) 7.91
  C) 9.60
  D) 11.55



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Jossy

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Answer to Question 1

A

Answer to Question 2

D




Redwolflake15

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)


milbourne11

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Reply 3 on: Yesterday
Gracias!

 

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