One Sample T Test Confidence Interval Formula. The sample size n is 30. View w8 one sample t test docx from cit 101 at los angeles pierce college.
The formula for estimation is. T x y μ x μ y s p 1 n 1 m t n m 2. Then the proof is a bit on the trivial side because we then know that.
The sample size is n 10 the degrees of freedom df n 1 9.
Because the sample size is small we must now use the confidence interval formula that involves t rather than z. T confidence interval formula confidence t alpha standard dev size the function uses the following arguments. Hypothesis testing using t and confidence interval using s x in the united states mothers who live in poverty generally. Confidence level 1 a.
