1. A pharmacy is using X bar and R charts to record the time it takes...

1. A pharmacy is using X bar and R charts to record the time it takes to fill a prescription after the customer has turned in or called in the prescription. Each day, the pharmacy records the times it takes to fill six prescriptions. During a 30-day period, the hospital obtained the following values: X double bar = 20 minutes; R bar = 4 minutes. The upper and lower specifications are 23 minutes and 13 minutes respectively. What is the value of 6 sigma, to one decimal place?

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milcah answered 1 month ago

2. A pharmacy is using X bar and R charts to record the time it takes...

2. A pharmacy is using X bar and R charts to record the time it takes to fill a prescription after the customer has turned in or called in the prescription. Each day, the pharmacy records the times it takes to fill six prescriptions. During a 30-day period, the hospital obtained the following values: X double bar = 20 minutes; R bar = 4 minutes. The upper and lower specifications are 23 minutes and 13 minutes respectively. What is the...

A large bank established X-Bar and R charts for the time required to process applications for...

A large bank established X-Bar and R charts for the time required to process applications for its charge cards. A sample of five applications is taken each day. The first four weeks (20 days) of data give: X bar bar = 16 min s bar = 3 min R bar = 7 min Based on the values given, calculate the centerline and control limits for the X bar and R charts.

Discuss the purposes and differences between the C- charts, p-charts and X-bar and R charts. 2....

Discuss the purposes and differences between the C- charts, p-charts and X-bar and R charts. 2. Define Cp and Cpk 3. The capability index allows for some drifting of the process mean. Discuss what this means in terms of product quality output.

Use the data in the table below to set up short-run X-bar and R charts using...

Use the data in the table below to set up short-run X-bar and R charts using the DNOM approach. The nominal dimensions for each part are TA = 50, TB = 75, TC = 60, TD = 100, and TE = 125. Sample Part M1 M2 M3 1 A 51 50 51 2 A 48 50 52 3 A 50 52 48 4 A 49 51 54 5 A 47 45 52 6 A 49 50 51 7 B 73...

1. Why are X-bar and R-Charts used together? Please Explain. 2. The principal focuses and methods...

1. Why are X-bar and R-Charts used together? Please Explain. 2. The principal focuses and methods of the pioneers of scientific management, what are they?(as represented by Henry Gantt, Frederick Taylor, Frank Gilbreth,etc.). In your words, how is the modern total quality management method different from the above?

x bar and R control Charts A quality control inspector at the Company B has taken...

x bar and R control Charts A quality control inspector at the Company B has taken twenty-five samples with four observations each of the sample weight (g). The data are shown in the table. Construct x bar and R control charts for these data. Identify any out-of- control points. Assume these points (if any) are assignable. Remove them and recalculate the control limits. Construct the revised x bar and R control charts. Submit data (spreadsheet) and charts. Comment on the...

Use the attached file to make the appropriate x-bar and R charts. You must include the...

Use the attached file to make the appropriate x-bar and R charts. You must include the data points, center line, upper and lower control limits. (Remember, only the data points should NOT be a straight line.) MEAN CI x-bar (Grand Mean) LCL x-bar (CI-A2*R-bar) UCL x-bar (CI+A2*R-bar) Sample Range (Max-Min) R-bar (Mean) UCL R (R-bar*D4) 1 12.00 12.50 12.47 12.78 13.00 2 12.78 11.18 11.92 11.95 11.86 3 13.30 13.00 12.95 12.98 13.32 4 11.29 12.87 12.53 11.42 12.37 5...

MEAN CI x-bar (Grand Mean) LCL x-bar (CI-A2R-bar) UCL x-bar (CI+A2R-bar) Sample Range (Max-Min) R-bar (Mean)...

MEAN CI x-bar (Grand Mean) LCL x-bar (CI-A2*R-bar) UCL x-bar (CI+A2*R-bar) Sample Range (Max-Min) R-bar (Mean) UCL R (R-bar*D4) 1 68.51 68.46 68.54 68.34 68.46 68.46 2 68.94 68.2 68.54 68.56 68.7 68.7 3 68.66 68.44 68.55 68.77 68.7 68.64 4 68.49 68.94 68.56 68.62 68.69 68.56 5 68.64 68.63 68.62 68.32 68.34 68.24 6 68.34 68.42 68.99 68.02 68.03 68.47 7 68.99 68.94 68.95 68.95 68.94 68.97 8 68.92 68.91 68.97 68.93 68.96 68.95 GRAND MEAN n= A2= D4=

1. A study of the amount of time it takes a recording artist to record a...

1. A study of the amount of time it takes a recording artist to record a CD shows that the mean is 11.2 hours with a standard deviation of 6.6 hours. If 40 recording artists are randomly selected, find the probability that their mean recording time is between 9.75 and 12.55 hours. Probability Statement:: ________________________ z-Score: ____________ Answer

Process Control at Polaroid (A) 1. Create and interpret SPC charts – Xbar and R charts...

Process Control at Polaroid (A) 1. Create and interpret SPC charts – Xbar and R charts for each work shift for finger height and pod weight. (provide step by step instructions on how you came up with the XBar, R, R bar, X double bar, UCL, and LCL) Pod Weight (grams) Sample Number: Day Shift 1 2 3 4 5 6 3 August A 2.800 2.799 2.760 2.802 2.805 2.803 B 2.750 2.820 2.850 2.740 2.850 2.790 C 2.768 2.807...

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