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[See] One sample has n = 4 scores with SS = 100 and the second sample has n = 8 scores with SS = 140. Calculate the pooled variance for the two samples

Question: One sample has n = 4 scores with SS = 100 and the second sample has n = 8 scores with SS = 140.

  1. Calculate the pooled variance for the two samples
  2. Calculate the estimated standard error for the sample mean difference.
  3. If the sample mean difference is 6 points, is this enough to reject the null hypothesis for a two-tailed test with \(\alpha =0.05\) ?
  4. If the sample mean different is 9 is this enough to reject the null hypothesis for a two-tailed test with \(\alpha =0.05\) ?

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


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