Question: The data in the following table represent time study observations for a woodworking operation. a. Based on the observations* determine the standard time for the

The data in the following table represent time study observations for a woodworking operation.
a. Based on the observations* determine the standard time for the operation, assuming an allowance of 20 percent of job times.
b. How many observations would be needed to estimate the mean time for task 1 within I percent of its true value with a 95.5-percent confidence?
c. How many observations would be needed to estimate the mean time for task 1 within .01 minute of its true value with a 95.5-percent confidence?

Observations (minutes per cycle) Task Performance Ratina 2 3 4 1.2 2 82 .59 6 1.20 I24 1.13 115 105 83 58 53 85 1.32* .54 87 .78 .52

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