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Author Question: Zappos is an online retailer based in Nevada and employs 1,300 employees. One of their competitors, ... (Read 127 times)

Jipu 123

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Zappos is an online retailer based in Nevada and employs 1,300 employees. One of their competitors, Amazon.com, would like to test the hypothesis that the average age of a Zappos employee is less than 36 years old.
 
  A random sample of 22 Zappos employees was found to have an average age of 33.9 years. The standard deviation for this sample was 4.1 years. Amazon would like to set  = 0.025. The critical value for this hypothesis test would be ________.A) 1.282
  B) 1.771
  C) 2.080
  D) 2.977

Question 2

If two variables have a correlation coefficient equal to -0.60 from a sample size of 5, we can conclude that the population correlation coefficient is less than zero using  = 0.05.
 
  Indicate whether the statement is true or false


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carolinefletcherr

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Jipu 123

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Reply 2 on: Jun 24, 2018
Excellent


bblaney

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Reply 3 on: Yesterday
:D TYSM

 

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