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Ten random measurements in parking lots a and b yield

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Two competing lighting systems are installed in two adjacent parking lots, with system A being significantly less costly than system B. The manufacturer of system B argues that its system provides more uniform lighting. Ten random measurements in parking lots A and B yield readings with standard deviations of 12 and 9, respectively. Can manufacturer B legitimately claim to provide more uniform lighting?

Reference no: EM13628818

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