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cody.chaffee cody.chaffee
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6 years ago
A light bulb manufacturer wants to advertise the average life of its light bulbs so it tests a subset of light bulbs. This is an example of inferential statistics.
 
  Indicate whether the statement is true or false

Q. 2

The standard deviation for the population is denoted as ________.
 
  A)
  B)
  C) s
  D)

Q. 3

The number of degrees of freedom for error is:
 
  A) 29
  B) 15
  C) 8
  D) 4

Q. 4

Which of the following distributions is most likely to approach a normal distribution?
 
  A) distribution of all possible sample means of sample size 90
  B) distribution of all possible sample means of sample size 60
  C) distribution of all possible sample means of sample size 120
  D) distribution of all possible sample means of sample size 30
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Statistics, Data Analysis, and Decision Modeling

Statistics, Data Analysis, and Decision Modeling


Edition: 5th
Author:
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taphophobiataphophobia
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6 years ago
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cody.chaffee Author
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#2
6 years ago
Thank you Jesus, my teacher is bad at explaining
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