Repeat the previous exercise, using lower? = .05. For each true value of , is the

Question:

Repeat the previous exercise, using lower? α = .05. For each true value of π, is the power higher or lower?
Previous exercise
A quality expert inspects 400 items to test whether the population proportion of defectives exceeds .03, using a right-tailed test at α = .10.
(a) What is the power of this test if the true proportion of defectives is π = .04?
(b) If the true proportion is π = .05?
(c) If the true proportion of defectives is π = .06?