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Claudia899 Claudia899
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6 years ago
The following data set represents the age of a random sample of cars on the road today.
 
  1 3 3 7 10 12
 
  The standard deviation of this sample is ________.
  A) 4.38
  B) 7.14
  C) 8.80
  D) 9.06

Q. 2

The level of significance represents the probability of making a Type I error.
 
  Indicate whether the statement is true or false

Q. 3

The ________ is the most common and most important measure of variability in the field of statistics.
 
  A) range
  B) variance
  C) median
  D) standard deviation

Q. 4

When the confidence interval for the difference between two means does not include zero when testing , we have support that a significant difference between population means does exist.
 
  Indicate whether the statement is true or false
Textbook 
Business Statistics

Business Statistics


Edition: 2nd
Author:
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vangsue16vangsue16
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6 years ago
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Claudia899 Author
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6 years ago
You make an excellent tutor!
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Thanks
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This site is awesome
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