Consider the following statements :

    Usage of parametric tests include

    1. Population must be of normal distribution
    2. Variables must have been measured in interval or ratio scale
    3. Observation must be independent
    4. The population must have some variance.

    Of the statements :

  • I alone is correct
  • I and II are correct
  • I, II and III are correct
  • all are correct
Consider the following statements : Usage of parametric tests include Population must be of norm
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