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 0.92 volt, and the manufacturer wishes to test Ho:u = 5 volts against H1:H 5 volts, using n = 9 units. In your intermediate calculations, use z-scores rounded (e.g. 98.7654). two decimal places (e.g. 98.76). Round your answers to four decimal places (a) The acceptance region is 4.83 < I< 5.17. Find the value of a. (b) Find the power of the test for detecting a true mean output voltage of 5.1 volts. (a) i (b) i

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