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Problem $10-6($Static$)$

A medical facility does MRIs for sports injurles. Occasionally, a test ylelds inconclusive results and must be repeated. Using the following sample data and $n=200.$

$\backslash$table$[[,$SAMPLE$],[,1,2,3,4,5,6,7,8,9,16,11,12,13],[$Number of retests,$1,2,2,,2,1,2,,2,7,3,2,1]]$

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a$.$ Determine the upper and lower control limits for the fraction of retests using two$-$sigma limits$.($Do not round intermediate calculations. Round your final answers to $4$ decimal places. Leave no cells blank $-$ be certain to enter $"0"$ wherever required.$)$

$\backslash$table$[[,],[$UCL$,],[$LCL$,]]$

b$.$ Is the process in control?

The process is in control.

The process is not in control.