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The follwing is Q4 with it answer. A large cable company received a shipment of audio video cables with the wrong connectors.
Determine the standard time the manager will use to change the connectors.
Performance rating factor = .95, Allowance factor = .04
Average observation time from above table = 7.176 minutes
Normal cycle time = Average observation time* Rating factor = 7.176*0.95 = 6.8172 minutes
Standard time = Normal cycle time*(1+allowance factor) = 6.8172*1.04=7.089 minutes
So, the standard time the manager will use to change the connectors = 7.089 minutes
Sample size ( 10 marks)
The operations manager from Q4 wants to make sure the right sample size was used to collect the observations and calculate the standard time.
The company’s owner will be satisfied within an accuracy 2% in the time estimates but wants to be 99% confident.
Determine of the sample size of 10 that was used was sufficient to meet the owner’s expectations. Describe your findings. Hint: You will have to recall how to calculate the standard deviation from the observations in Q4.
