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Evidence that the mean loc has increased

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From a long lasting experience with programming in FORTRAN Programming language, it is known that the lines of code (LOC) are normally distributed with a mean of 500 and a standard deviation of 96 LOC. From an experiment with 50 programmers, the mean LOC is 535. At 95% confidence level, does the experiment provide enough evidence that the mean LOC has increased.

Reference no: EM132479256

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