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**Unformatted text preview: **= 0.56 minutes & 2. Machine time = 0.84 x (1/3) = 0.28 minute Therefore, Normal time or Basic Time per article =Observed Time x R ating + Machine time = 0.56 x 1.15 + 0.28 =0. 924 min Standard time per article = Normal time (or Basic Time) + Allowances = 0.924 + 0.924 x (12/100) = 1.0348 min. PROBLEM 1: A car manufacturing company uses robots for its painting shop. The Company is interested in determining the idle time of the robot by work sampling application. A trial study revealed that in 100 observations, 25 number of times the robot was found to be idle. Determine how many observations would have to be needed to give a confidence level of 95% and an accuracy of 5 % in the final results. PROBLEM 2: When the study was completed in the above stated car manufacturing Company, the result indicated that a total of 3733 number of observations were needed. Test whether or not the results would be within the desired accuracy. The final observations gave the following data: Observations when robot was found to be working = 2600 Observations when robot was found to be idle = 1400...

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- Fall '16
- Normal Distribution, standard time, Basic Time