A new industrial oven has just been installed at Piatt Bakery To develop experie

Question

A new industrial oven has just been installed at Piatt Bakery To develop experience regarding the oven temperature, an inspector reads the temperature at four different places inside the oven each half hour starting at 800 a m. The last reading was at 1030 am, for a total of six samples. The first reading, taken at 800 am, was 343 degrees Fahrenheit (Only the last two digits are given in the following table to make the computations easier) 8:06 a.m. 4344 46 39 8:30 a.m. 4864 49 35 9:88 a.m. 4241 44 40 9:30 a.m. 4337 46 49 18:00 a. 45 49 48 41 18:30 a. 47 443636 e. On the basis of tis initial experience, determine the control limits for the range, pound your intermediate calculations end final answers to 2 decimal places) Prev 10 or 13 Next > 7 shift

Explanation / Answer

The statistical software output for this problem is:

Control chart results:
R Chart results:
Upper control limit = 27.384
Center line = 12
Lower control limit = 0

Hence,

a) LCL = 0

UCL = 27.38

b) For 8:30 AM, the process is out of control and for other times, the process is in control. So it would be a Yes for 8:30 AM and No for all other time.

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