Six Sigma 1.9
A pharmaceutical company ships 250 orders of supplies. Each order has seven opportunities where errors can occur. The company finds 14 defects in the orders.What's the DPMO for this data set?
8000
What contributes to the cost of poor quality?
- Costs related to process inefficiency or poor scope -Costs incurred when output doesn't meet customer expectations -Activities or processes that don't meet expected outcomes -Difference between actual cost and ideal cost of a product or process
What are the Six Sigma performance metrics based on counting defects or nonconformities?
- Defects per unit - Process capability indices - Rolled throughput yield - First time yield
A call center's ordering pizza process for pick up orders involves agents manually filling in an electronic form while taking customer orders by phone. There are 12 fields on the form that the Customer Service representative have to complete including the customer's name, phone number, nine fields for the pizza description, and pick-up time. All fields on the form allow the representative to type out the information. Two hundred orders are randomly selected. A DPMO study on this process is conducted. What examples are possible defect opportunities?
- Typing in the wrong description in any of the nine fields for the pizza order - Typing the wrong phone number in the case where a call back is required - Typing in the wrong pick-up time
How can the COPQ be used as a performance metric in Six Sigma projects?
-To gather criteria for selecting future Six Sigma projects - To help create the project charter - As a baseline for improvement efforts -To track benefits throughout the project
At a pharmaceutical supplies company, a total of 130 defects were observed on an inspection of 1,000 units being shipped to a specific retailer.What's the DPU for the orders?
.13
A medical supply firm's three-inch bandage manufacturing process has a USL of 3.1 inches and an LSL of 2.9 inches. Standard deviation is 0.0324 and the mean is 3.0095. What is the Cp for this process?
1.03
n electricity supplier finds four defects when inspecting 35 turbines bought from a manufacturer. The purchase manager has set 18 check points for each turbine. What is the DPMO for this data set?
6349.206
Match the first time yield (FTY) and rolled throughput yield (RTY) categories with the characteristics that relate to them. Each category matches to more than one characteristic.
Is calculated using the formula (units with no defects/ total units inspected) x 100: FTY Is defect sensitive: RTY Is unit sensitive: FTY Is calculated using the formula FTY₁ x FTY₂ x FTY₃ x FTY₄...: RTY
Match the characteristics to the most appropriate performance measurement approach.More than one characteristic will match to each approach.
Measuring Variability: - Compares specification limits to process variability or standard deviation - Is used with continuous data that has normal distribution - Calculates Cpk Counting Defects: -Works with any type of data -Examines conformity of process outputs -Is used to calculate RTY and FTY
What's the definition of rolled throughput yield?
The probability of a unit passing through an entire process with zero defects
