# Question

Suppose we test H0: p = .3 versus Ha: ≠ .3 and that a random sample of n = 100 gives a sample proportion p-bar = .20.

a. Test H0 versus Ha at the .01 level of significance by using critical values. What do you conclude?

b. Find the p-value for this test.

c. Use the p-value to test H0 versus Ha by setting a equal to .10, .05, .01, and .001. What do you conclude at each value of α?

a. Test H0 versus Ha at the .01 level of significance by using critical values. What do you conclude?

b. Find the p-value for this test.

c. Use the p-value to test H0 versus Ha by setting a equal to .10, .05, .01, and .001. What do you conclude at each value of α?

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