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Author Question: A probability distribution with an expected value greater than the expected value of a second ... (Read 89 times)

erika

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on: Jun 24, 2018
A probability distribution with an expected value greater than the expected value of a second probability distribution will also have a higher standard deviation.
 
  Indicate whether the statement is true or false

Question 2

The St. Joe Company grows pine trees and the average annual increase in tree diameter is 3.1 inches with a standard deviation of 0.5 inch.
 
  A random sample of n = 50 trees is collected. What is the probability of the sample mean being less the 2.9 inches?
  A) 0.4977
  B) 0.0023
  C) 0.9977
  D) 0.9954


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joneynes

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

FALSE

Answer to Question 2

B


erika

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

kjohnson

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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