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Author Question: Which of the sample sizes below will produce a sampling distribution of the mean that is ... (Read 78 times)

jhjkgdfhk

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on: Jul 24, 2018
Which of the sample sizes below will produce a sampling distribution of the mean that is approximately normal?
 a. 10
  b. 20
  c. 30
  d. 40
  e. all of these

Question 2

A Marine drill instructor recorded the time in which each of 15 recruits completed an obstacle course both before and after basic training. To test whether any improvement occurred, the instructor would use a t-distribution with 15 degrees of freedom.
  Indicate whether the statement is true or false


maya.nigrin17@yahoo.com

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

C

Answer to Question 2

F


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jhjkgdfhk

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Reply #2 on: Jul 24, 2018
TY


maya.nigrin17@yahoo.com

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Reply #3 on: Jul 24, 2018
You're welcome


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