0- The observed element times and performance ratings collected in a direct time study are indicated in the table below. The snapback timing method was used. The allowance on job time in the plant is 14%. All elements are regular elements in the work cycle. Determine (a) the normal time and (b) the standard time for the cycle. 1 1 1- Six cycles have been observed in a direct time study. The mean time is 0.82min, and the corresponding sample standard deviation s is 0.11min. If the analyst wants to be 95% confident that the mean of the sample was within \pm 0.10min of the true mean, how many more observations should be taken? 2- What would be the required number of readings if the analyst wanted to be 87 percent confident that the mean observed time was within \pm 5 percent of the true mean and the following values were established for an element after 19 cycles were observed? 0.09,0.08,0.10,0.12,0.09,0.08,0.09,0.12,0.11,0.12,0.09,0.10,0.12,0.10,0.08,0.09,0.10,0.12,0.09