1.A researcher computed the F ratio for a four-group experiment. The computed F is 4.86. The degrees of freedom are 3 for the numerator and 16 for the denominator.

  1. Is the computed value of F significant at p < .05? Explain.
  2. Is it significant at p < .01? Explain

2. Explain the difference between a t test for independent groups and a t test for matched groups.

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