Question: In conducting a time study, the engineer observed 2 0 cycles and found that the accuracy of the observations is + - 1 9 %

In conducting a time study, the engineer observed 20 cycles and found that the accuracy of the observations is +-19% if they assume a 90% confidence interval. What would be an appropriate goal to improve the accuracy of the study?
a. Achieve a smaller accuracy number
b. Achieve a larger accuracy number
c. Collect more observations to improve the accuracy
d. A and C
e. B and C
In conducting a time study, the engineer observed 20 cycles and

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