A manufacturer is interested in the output voltage of a power supply used in a PC. Output voltage is assumed to be normally distributed with standard deviation 0.25 volt, and the manufacturer wishes to test H0​:μ=5 volts against H1​:μ=5 volts, using n=18 units. Round your answers to three decimal places (e.g. 98.765). (a) The acceptance region is 4.85≤Xˉ≤5.15. Find the value of α. α= (b) Find the power of the test for detecting a true mean output voltage of 5.1 voltage. Power =