a)Fill in the relevant fields of the Time Study Observation Sheet Identification of operation: Sandwich Assembly Performance Normal Rate% OT(sec) Time(sec) Unpacking and placing materials (breads, 90 100 cheese, etc., once for 10 sandwiches) Il Grasp and lay out bread slices 75 15 Spread mayonnaise on both slices 105 15 100 20 11 Place ham, cheese, and lettuce on bread Place top on sandwich Slice, and stack Collecting and removing food waste, cleaning the kitchen counter(once for 10 sandwiches) 80 15 85 100 II Normal Time sec/Cycle Standard Time/Cycle Allowance PDF1 =15% Standart Output of Sandwiches/Shift Shift length (540min) b)The time study analyst has collected 10 readings on a particular work element of interest and would like to consider how many more cycles to time Based on the sample, the mean time for the element "Unpacking and placing materials (breads, cheese, etc., once for 10 sandwiches)" is 100 sec and the sample standard deviation is 20 sec. At a 95% confidence level, how many cycles should be timed to ensure the actual element time is within 10% of the mean? Solve with Normal Distribution Sample size n= c) At a 95% confidence level, how many cycles should be timed to ensure the actual element is within 5 sec? Sample size n= a)Fill in the relevant fields of the Time Study Observation Sheet Identification of operation: Sandwich Assembly Performance Normal Rate% OT(sec) Time(sec) Unpacking and placing materials (breads, 90 100 cheese, etc., once for 10 sandwiches) Il Grasp and lay out bread slices 75 15 Spread mayonnaise on both slices 105 15 100 20 11 Place ham, cheese, and lettuce on bread Place top on sandwich Slice, and stack Collecting and removing food waste, cleaning the kitchen counter(once for 10 sandwiches) 80 15 85 100 II Normal Time sec/Cycle Standard Time/Cycle Allowance PDF1 =15% Standart Output of Sandwiches/Shift Shift length (540min) b)The time study analyst has collected 10 readings on a particular work element of interest and would like to consider how many more cycles to time Based on the sample, the mean time for the element "Unpacking and placing materials (breads, cheese, etc., once for 10 sandwiches)" is 100 sec and the sample standard deviation is 20 sec. At a 95% confidence level, how many cycles should be timed to ensure the actual element time is within 10% of the mean? Solve with Normal Distribution Sample size n= c) At a 95% confidence level, how many cycles should be timed to ensure the actual element is within 5 sec? Sample size n=
