Refer to Exercise 8.114. Suppose we had n = 80, x = 19.4, and s2 = 2.208.

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Refer to Exercise 8.114. Suppose we had n = 80, x = 19.4, and s2

= 2.208.

a. Test the null hypothesis H0: s2

= 1 against the alternative hypothesis Ha: s2 7 1.

b. Compare your test result with that of Exercise 8.114.

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