A machining process has a required dimension on a part of 0.515 0.007 inches. Twenty-five parts

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A machining process has a required dimension on a part of 0.515 ± 0.007 inches. Twenty-five parts were measured as found in the Ch04Data.xlsx file for Prob04-10 on the Student Companion Site. What is its capability for producing within acceptable limits?























Machining Process I - Process Capability Analysis
































Frequency Distribution and Histogram


This spreadsheet is designed to handle up to 150 observations. Enter data ONLY in yellow-shaded cells.












Nominal specification
0.515











Data Minimum0.4970



Upper specification limit
0.522











Data Maximum0.5270



Lower specification limit
0.508


































Enter number of cells below (10 or less)



















Number of Cells10


























DATA123456789101112131415
Enter smallest and largest limits for the frequency distribution below.
10.4970.5160.5170.5040.520










The lower limit should be slightly less than the data minimum.
20.5060.5180.5140.5130.524










The upper limit should be slightly larger than the data maximum.
30.5270.5170.5130.5190.520
















40.5180.5220.5150.5130.518










Lower limit0.4950



50.5050.5160.5160.5120.514










Upper limit0.5300



6















Cell width0.0035



7





















8
















FromTo (inclusive)Frequency
9















Cell-Infinity0.49500

10















10.49500.49851


















20.49850.50200


















30.50200.50552

Process Capability Index Calculations











40.50550.50901

Average0.5150












50.50900.51251

Standard deviation0.0065












60.51250.51609


















70.51600.51956


















80.51950.52303

Cp0.3567














90.52300.52651

Cpl0.3547



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