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Author Question: A histogram is an effective tool for graphically describing a joint frequency distribution. ... (Read 38 times)

mia

  • Hero Member
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  • Posts: 564
on: Jun 24, 2018
A histogram is an effective tool for graphically describing a joint frequency distribution.
 
  Indicate whether the statement is true or false

Question 2

The following samples are observations taken from the same elements at two different times:
 
  Unit Sample 1 Sample 2
  1 15.1 4.8
  2 12.3 5.7
  3 14.9 6.2
  4 17.5 9.4
  5 18.1 2.3
  6 18.4 4.7
 
  Assume that the populations are normally distributed and construct a 90 confidence interval for the difference in the means of the distribution at the times in which the samples were taken.
  A) (7.6232, 13.4434)
  B) (5.2825, 15.8127)
  C) (6.8212, 14.7821)
  D) (7.4122, 14.6801)


heinisk01

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  • Posts: 329
Reply #1 on: Jun 24, 2018
Answer to Question 1

FALSE

Answer to Question 2

A


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