2. Fifteen successive heats of a steel alloy are tested for hardness. The resulting data are shown in Table
6E.21. Set up a control chart for the moving range
and a control chart for individual hardness measure-
ments. Is it reasonable to assume that hardness is
normally distributed?​

10 * 563.67 = 5636.7

hope it

step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)

you need to give us more information since we can't answer

need more detail

step-by-step explanation:

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