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    gretz39's Avatar
    gretz39 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Apr 21, 2009, 05:44 PM
    business statistics
    Day... Mean... Range
    1... 13.6... 3.5
    2... 14.3... 4.1
    3... 15.3... 5
    4... 12.6... 2.8
    5... 11.8... 3.7
    6... 12.9... 4.8
    7... 17.3... 4.5
    8... 13.9... 2.9
    9... 12.6... 3.8
    10... 15.2... 4.6

    n=4 for a 10-day period
    compute control limits for the range
    compute control limits for the mean

    I understand where most numbers go in the formula, but I do not understand how to compute the formula once the numbers are plugged in. HELP!
    De4rest's Avatar
    De4rest Posts: 85, Reputation: 7
    Junior Member
    		  
    #2

    Apr 29, 2009, 07:22 PM

    Can you be more specific like what kind of section are you learning on.. can you please provide the formula then and I can check what you did so far. All I understand from here is that you have to choose 4 from this 10 days.
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