Math Solutions

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

Question: One sample has n = 4 scores with SS = 100 and a second sample has n = 8 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 α = .05?
  4. If the sample mean difference is 9 points, is this enough to reject the null hypothesis for a two-tailed test with α = .05?

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Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


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