The Tools Practiced In This Workshop Are Histograms Descriptive Statistics Situation Consider That You Your Group Work 1 (51.59 KiB) Viewed 13 times
The Tools Practiced In This Workshop Are Histograms Descriptive Statistics Situation Consider That You Your Group Work 2 (16.71 KiB) Viewed 13 times
The tools practiced in this workshop are: Histograms Descriptive statistics Situation: Consider that you/your group works for a cheese cracker manufacturing operation and you have been tasked with collecting data to document the current performance of your production process. This data is needed to establish a baseline measurement at the beginning of your Lean Six Sigma project so that you will have a measurement to compare against later once the process has been improved. Please note that the customer specifications for your cheese cracker production process are: Target: 1.0 ± 0.13 cm (lower specification limit: 0.87 cm and upper specification limit: 1.13 cm) Instructions: Use information from your training manual in Measure Phase - Lessons 9-11 to assist you with the activities that follow. Be sure to follow the "best practices" for each tool you use in this workshop. You collect a random sample of cheese crackers from your production process and measure the Width (the distance across the cheese cracker) in centimeters (cm) of approximately 50 different cheese crackers. Use the measurements recorded in the Workshop 2 dataset Excel spreadsheet located in the Weekly module to calculate your descriptive statistics and create a histogram of your data. Activities: (also see next page) 1. For the cheese crackers produced by your production process, what is the: a. Average Width in centimeters (cm)? b. Standard deviation in cm? c. Range in cm? 2. Create a histogram that summarizes your data set (i.e., measurements of the cheese cracker Width in centimeters): 3. Near the end of your Lean Six Sigma project, after you have implemented solutions to improve your cheese cracker production process, you measure the process performance again and get the following results:
Cracker Width - Average: 0.98 cm; standard deviation: 0.12 cm; range: 0.9-1.1 cm a. Have you improved the process? Yes or no and why. Hint: Perform a before and after comparison by comparing the baseline measurements this question. in Activity #la-c of this Workshop with the measurements given in b. How well does the improved process fulfill customer requirements? Hint: Perform another comparison by comparing the measurements given in this question to the customer specifications given in the "Situation" part of this Workshop.
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!