The analyst in the Dorben Reference Library decides to use t

The analyst in the Dorben Reference Library decides to use the work sampling technique to establish standards. Twenty employees arc involved. The operations include cataloging, charging books out, returning books to their proper location, cleaning books, record keeping, packing books for shipment, and handling correspondence. A preliminary investigation resulted in the estimate that 30 percent of the group\'s time was spent in cataloging. How many work sampling observations would be made if it were desirable to be 95 percent confident that the observed data were within a tolerance of plusminus 10 percent of the population data? Describe how the random observations should be made. The following table illustrates some of the data gathered from 6 of the 20 employees. The number of volumes cataloged equals 14,612. From these data, determine a standard, in hours per hundred, for cataloging. Then design a control chart based on pluseminus3 limits for the daily observations.

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