20. For each of the following situations, state whether a Type I, a Type II, or neither error has been made.

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a) A test of Ho: hypothesis. Later it is discovered that u = 24.9. 25 vs. HA: > 25 rejects the null b) A test of Ho: p = 0.8 vs. HA: p < 0.8 fails to reject the null hypothesis. Later it is discovered that p = 0.9. c) A test of Ho: p = 0.5 vs. HA: p 0.5 rejects the null hypothesis. Later is it discovered that p = 0.65. d) A test of Ho: p = 0.7 vs. HA: p < 0.7 fails to reject the null hypothesis. Later is it discovered that p = 0.6.