Suppose we had  and s2 = 1.84.a. Test the null hypothesis H0: σ2 = 1 against the alternati...

Suppose we had  and s2 = 1.84.

a. Test the null hypothesis H0: σ2 = 1 against the alternative hypothesis Ha: σ2 > 1.

b. Compare your test result with that of Exercise.

A random sample of seven measurements gave  and s2 = 1.84.

a. What assumptions must you make concerning the population in order to test a hypothesis about σ2?

---

b. Suppose the assumptions in part a are satisfied. Test the null hypothesis σ2 = 1 against the alternative hypothesis σ2 > 1. Use α =.05.

---

c. Suppose the test statistic is χ = 14.45. Use Table to find the approximate p -value of the test.

---

d. Test the null hypothesis σ2 = 1 against the alternative hypothesis σ2 ≠ 1. Use α =.05.