How many observations are needed in a work

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A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee time is spent on the telephone. How many observations are needed in a work sampling study to estimate that time percentage to within 6 percent and have a confidence of 98 percent?

Reference no: EM13917432

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A work sampling study is to be conducted : A work sampling study is to be conducted on rush hour traffic (4: 00 p. m. to 6: 59) five days per week. The study will encompass 40 days. Determine the day, hour, and minute for 10 observations using the following procedure and Table 7.5:
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