Question: Use the value (s) obtained in Exercise 9.3 to construct a (98 %) confidence interval for (sigma), measuring the actual variability in the hardness of

Use the value $s$ obtained in Exercise 9.3 to construct a $98 \%$ confidence interval for $\sigma$, measuring the actual variability in the hardness of Alloy 1.

Data From Exercise 9.3

9.3 Use the data of part (a) of Exercise 8.13 to estimate

for the Brinell hardness of Alloy 1 in terms of

Data From Exercise 8.13

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9.3 Use the data of part (a) of Exercise 8.13 to estimate for the Brinell hardness of Alloy 1 in terms of

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