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There were two separate children samples who were taught history in two different way, one is...

  1. There were two separate children samples who were taught history in two different way, one is traditional using only blackboard the other one using different methods of teaching history including videos. The first sample has n = 10 with SS = 450 where the second sample has n = 4 and a SS = 230.
  1. Calculate the pooled variance for both samples.
  2. If the sample mean difference is 6 point, do you have the enough information for rejecting the null hypothesis for a two tailed test with α = .5 ?
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