![]() ![]() Time-Bound: I have set a deadline for this goal and know that I have to achieve this by the end of next week. Making sure you deliver whats promised to build personal and professional credibility should be reason enough to. Relevant: This goal is relevant for me because it will improve my productivity. They arent doing well managing their time. Where N = Required number of observations to predict the little time with in ±5% accuracy and 95% confidence level. Attainable: This goal is attainable as it requires me to get more organized and requires only dedication. From statistics, for this condition, number of cycles to be timed can be found by the following relation. Time study is a sampling process, therefore, large number of readings should be taken so that the results will be representative of the activity being measured and the desired accuracy may be obtained.Įxperience has shown that 95% confidence level and ± 5% accuracy is sufficient for time study. ![]() However, this variation can be reduced to some extent by using highly standardized raw materials, good tools and equipment’s, good working conditions and a qualified and well trained operator, but the variation cannot be avoided completely. ![]() Time required to perform an element of an operation varies slightly from cycle to cycle. Consideration is usually given to between-hour and between day variations by taking the observations during, say, the middle of the morning work period and during the second or third day of the work week, when it is assumed that the production rate is average as far as these sources of variation are concerned.
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