Sort the means of the resamples in increasing order. x1 is the lowest number, xB is the highest number.
Lower bound: xl where =
Upper bound: xu where =
For a one-sided case (only a lower bound or upper bound), use α instead of α/2.
When l or u are not integers, Minitab does a linear interpolation between the two numbers on either side of l or u. The formula is:
Xy + z(Xy+1 - Xy)
For example, if l = 5.25, the lower bound equals x5 + .25(x6 - x5).
Minitab does not display the confidence interval when or .
| α ||1- confidence level/100|
| B ||number of resamples|
|Xy ||the yth row of data when the data are sorted from least to greatest|
| y ||the truncated value of l or u|
|z||l-y or u - y|