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The median score lies in which score interval? 1 – 5 6 – 10 11 –...

  1. The median score lies in which score interval?
  1. 1 – 5
  2. 6 – 10
  3. 11 – 15
  4. Need more information
  1. A regression analysis includes Sex as an explanatory variable. How many dummy variables are required to be defined?
  1. 1
  2. 2
  3. 3
  4. Need more information
  1. When point A is removed from a regression analysis the correlation coefficient increases. Which one of the following must be correct?
  1. A is an outlier.
  2. A is a point of high leverage.
  3. A corresponds to a large residual value.

A should not be removed from the regression

math   Statistics-And-Probability   
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Answer #1

The median score lies in which score interval?

iv. Need more information

Class interval only given. need frequency (number of scores in each interval)

A regression analysis includes Sex as an explanatory variable. How many dummy variables are required to be defined?

iii. 3

Male, female,and trans gender

When point A is removed from a regression analysis the correlation coefficient increases. Which one of the following must be correct?

i A is an outlier.

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