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fitscarlet fitscarlet
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6 years ago
In testing for the differences between the means of two independent populations, we assume that the 2 populations each follow a normal distribution.
 
  Indicate whether the statement is true or false

Q. 2

A 95 confidence interval estimate for a population mean  is determined to be 62.8 to 73.4. If the confidence level is reduced to 90, the confidence interval for  becomes narrower.
 
  Indicate whether the statement is true or false

Q. 3

In multiple regression models, the values of the error variable  are assumed to be:
 
  A) autocorrelated.
  B) dependent of each other.
  C) independent of each other.
  D) always positive.

Q. 4

The correlation coefficient r is a number that indicates the direction and the strength of the relationship between two random variables.
 
  Indicate whether the statement is true or false

Q. 5

The measure that examines the location of a data value relative to the mean of the distribution is called a z-score.
 
  Indicate whether the statement is true or false
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JesseyBantoloJesseyBantolo
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6 years ago
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fitscarlet Author
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#2
6 years ago
tremendous help
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