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Author Question: The number of hours per day a college student spends on homework has a mean of 6 hours and a ... (Read 152 times)

mckennatimberlake

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on: Jul 25, 2018
The number of hours per day a college student spends on homework has a mean of 6 hours and a
  standard deviation of 1.25 hours. Yesterday she spent 3 hours on homework. How many standard
  deviations from the mean is that?
 
  A) 1.20 standard deviations below the mean B) 1.20 standard deviations above the mean
  C) 2.40 standard deviations below the mean D) 2.40 standard deviations above the mean

Question 2

Scores on a test have a mean of 66 and a standard deviation of 9. Michelle has a score of 57.
  Convert Michelle's score to a z-score.
 
  A) 1 B) -9 C) 9 D) -1


Tonyam972

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Reply #1 on: Jul 25, 2018
Answer to Question 1

C

Answer to Question 2

D


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mckennatimberlake

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Reply #2 on: Jul 25, 2018
Thanks


Tonyam972

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Reply #3 on: Jul 25, 2018
Welcome :)


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