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Question 212:

How would I figure out a 90% and 95% confidence interval for the below informaion? What would be the formula? Can I figure this out in Excel or Megastat? How would I do that?

Men Female
count 53 47
mean 36,492.92 24,451.51
sample variance 340,313,003.72 154,893,232.30
sample standard deviation 18,447.57 12,445.61

standard error of the mean 2,533.97 1,815.38

Need more than just an answer? Download the Easy t Excel T-test Calculator Package which gets you the answer with the detailed calculations.

Need help with the concepts in this question ? View the Comparing Two Means: 2 Sample t-test Tutorial.

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