Confidence Interval Formula T Test. In this case the sample mean is 4 8. So a significance level of 0 05 is equal to a 95 confidence level.
Probability T Distribution Formula Used In Statistics Confidence Interval Probability Bell Curve from in.pinterest.com
Eight pairs of pigs were used. Confidence interval formula for two sample mean but for two independent random samples where the standard deviation is unknown and the sample size is sufficiently large then we will have to use a t test which involves a t distribution with degrees of freedom as well as the possibility of pooled variances. T x y μ x μ y s p 1 n 1 m t n m 2.
Eight pairs of pigs were used.
T x y μ x μ y s p 1 n 1 m t n m 2. We could use the t inv function in exce l to calculate this value. The sample standard deviation s is 0 4. Eight pairs of pigs were used.
