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Author Question: A small business owner has two fast food restaurants. The owner wants to determine if there is any ... (Read 302 times)

melly21297

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on: Jun 24, 2018
A small business owner has two fast food restaurants. The owner wants to determine if there is any difference in the variability of service times at the drive-thru window of each restaurant.
 
  A sample of size n = 9 is taken from each restaurant's drive-thru window. To perform a hypothesis test using the 0.05 level of significance the critical value is:A) 3.438
  B) 3.197
  C) 4.026
  D) 4.433

Question 2

Two airlines are being compared with respect to the time it takes them to turn a plane around from the time it lands until it takes off again.
 
  The study is interested in determining whether there is a difference in the variability between the two airlines. They wish to conduct the hypothesis test using an alpha = 0.02. If random samples of 20 flights are selected from each airline, what is the appropriate F critical value?A) 3.027
  B) 2.938
  C) 2.168
  D) 2.124


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atrochim

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

D

Answer to Question 2

A


melly21297

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Reply 2 on: Jun 24, 2018
Gracias!

irishcancer18

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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