Amanufacturer 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 = 8 units. a. the acceptance region is 4.85 ≤ x ≤ 5.15. find the value of α. b. find the power of the test for detecting a true mean output voltage of 5.1 volts.