<< Click to Display Table of Contents >> Navigation:  Modules > Time Study > Observed Time Tab > Video Observation Method > Required Observations Calculation

Assembly Planner will automatically calculate the required number of observations that you would need to collect in order to attain a normal time within a given confidence level.

To calculate the required number of observations, enter the desired confidence level (ie 85%, 90%, 95%) for each task in the Confidence Interval column in the Observations tab's Task table. If multiple observations have been recorded for a task, its required number of observations will be displayed in the next column. Note: Since the calculation requires a standard deviation between observations, if you have zero or one observations recorded, the required number of observations cannot be calculated and will display as 0.