The Canine Gourmet Company produces delicious dog treats for canines with darimi

Question

The Canine Gourmet Company produces delicious dog treats for canines with dariminating tastes Management wants the box-filing line to be set so that the process average weight per packet is 41 grams To make sure that e processincontrol, an mpector at the end ofthe tingline periodaly see arandom bo. ef 8 packets and woghs each packet whenbeprocessis 'kk the icon to view table of fados calculul gthree signalints torbexchan and R chart a Design an R-and an x-chat for this process " uc4e equals»grams and telas equals»pans (Entw your mspose rounded b ho deon"places) cortrol the range i the w ight of each sample has averaged 7 grams

Explanation / Answer

Number of packets in a box (n) = 8

Average range in the weight of each sample (R bar) = 7 grams

The average weight of each packet (X double bar) = 41 grams

Now using the above table,

For the size of sample n = 8,

A2 = 0.373

D3 = 0.136

D4 = 1.864

Ans a)

For R chart

Control limit = R bar = 7 grams

Upper Control Limit (UCLR) = D4* Rbar

= 1.864 * 7

= 13.05 grams

Lower Control Limit (LCLR) = D3* Rbar

= 0.136 * 7

= 0.95 grams

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