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Determining Sample Size for Estimating poportions It is necessary to determining the sample size for a problem involving proportions. This deals with the percentage of f
what are the characteristics of operation research
Maps, Atlases and Globes: Maps illustrate the distribution of many things that occur on the surface of the earth. Information is presented by the use of a vast array of symbol
During busy times, 60 potential customers per hour arrive at the booth (assume a Poisson distribution). A booth worker takes 5 minutes, on average, to meet the information needs of
Use of t -tables Similar to normal curve tables there exist t- distribution tables. However whereas the properties of the normal curve are constant for all
ONE SAMPLE RUNS TEST A number of methods have been developed fro judging the randomness of samples on the basis of the order in which teh observations are taken. It is
Cost The cost factor is a very important factor in determining the size of the sample. The budget for research should be properly decided. The management may not lik
advantage of quality circle process
MEAN DEVIATION Mean deviation of a series is the arithmetic average of the deviations of various items from the median or mean of that series. Median is preferred
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
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