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Four-group experiement

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

1. is the computed vaule for F significant at p<.05? Explain

2. Is it significant at p< .01 Explain

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## Q : Variability in the predictor

The value of the linear correlation coefficient is reported by an investigator to be 0.55. Based on this statistic we can conclude that: 55% of the variability in the predictor can be explained by the variability in the response