this does not mean that there is 0.95 probability of meeting the parameter μ in the calculated interval. every time the measurements are repeated, there will be another value for the mean of the sample. in 95% of the cases, "μ" will be between the endpoints calculated from this mean, but in 5% of the cases, it will not be. the actual confidence interval is calculated by entering the measured weights in the formula. our 0.95 confidence interval becomes: