# Question: Refer to the Wheat Chex problem 17 56 with

Refer to the Wheat Chex problem 17.56 with μ = 465 and σ = 3. During production, samples of three boxes are weighed every 5 minutes.

(a) Find the upper and lower control limit for the x chart.

(b) Plot the following 20 sample means on the chart. Is the process in control?

(a) Find the upper and lower control limit for the x chart.

(b) Plot the following 20 sample means on the chart. Is the process in control?

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