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A manufacturer is interested in the output voltage of a power supply used in a PC....

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 0.20 volt, and the manufacturer wishes to test H: µ = 5 volts against H: µ # 5 volts, using n= 8 units.

(a) The acceptance region is 4.85 =<x<= 5.15. Find the value of (alpha).

(b) Find the power of the test for detecting a true mean output voltage of 5.1 volts.

Math   Statistics-And-Probability   
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