Question: EXAMPLE 2 How many observations will be required to estimate the proportion of time used to setup the 10 machines in the WS Study. -

EXAMPLE 2 How many observations will be required

EXAMPLE 2 How many observations will be required to estimate the proportion of time used to setup the 10 machines in the WS Study. - The confidence interval must be within +/- .03 Estimated proportion is .20 A 95% confidence level will be used NOTE: After the study, if P is different than the estimated value then re-calculate N If N > than original then take additional observations to match the confidence interval If new N

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