#### Answer

a) $42.74\%$
b) $57.26\%$

#### Work Step by Step

a) $0.4274$ suggests that if we were to reject the null hypothesis, there is a $42.74\%$ chance that our rejection would be a valid rejection of the null hypothesis.
b) The value of $0.5726$ suggests that if we were to accept the null hypothesis, there is a $57.26\%$ chance that our acceptance would be correct.