Question: 2. The following data represent observations for a task in an assembly process. How many observations would be necessary for the observer to be 99%

2. The following data represent observations for a task in an assembly process. How many observations would be necessary for the observer to be 99% confident that the average task time is within 5% of the true value? 3. A time study at the phone company has observed a job containing three elements. The times and ratings for 10 cycles are shown in the table: (3a) Find the average observed time for each element. (3b) Find the normal time for each element. (3c) Assuming an allowance factor of 20% of job time, determine the standard time for this job

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