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It is not possible to be in control on the X-bar chart

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Question;1) It is not possible to;be in control on the X-bar chart and out of control on the R-chart for the same;process at the same time;True;False;2) Nonrandom;variation can be the result of an operator error.;True _____ False;2) A project;manager at System Design Corporation has collected the following data on the;size of software programs and the length of programming time. The company is;bidding on a new system that is estimated to consist of 25000 lines of code.;Please use the data to find the functional relationship of the coding time to;the program size and estimate the number of days it would take to code the;system.;Module Size in;1000 lines of code (KLOC) Number of days to code;1 160 68;2 158 66;3 148 70;4 135 59;5 178 72;6 170 68;7 158 64;8 138 65;9 200 70;10 195 68;11 189 65;12 173 68;13 159 70;14 163 71;15 150 66;16 140 65;17 206 73;18 144 64;19 157 70;20 183 74;21 195 75;22 190 77;23 182 69;24 152 65;25 174 69;3) For the above;problem plot a histogram of module size in this program.;4) Consider a;machine that fills soda bottles. The process has a mean of 15.9 ounces and a;standard deviation of 0.06 ounces.;The specification;limits are set between 15.8 and 16.2 ounces.;a) Compute and;interpret the machine?s Cp;b) Compute and;interpret the machine Cpk;c) What % of the;bottles will be considered under-filled?

 

Paper#61490 | Written in 18-Jul-2015

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