For a certain wine, the mean pH (a measure of acidity) issupposed to be 3.32 with a known standard deviation of ? =.14. The quality inspector examines 31 bottles at random to testwhether the pH is too low, using a left-tailed test at ? =0.05.
(a) What is the power of this test if the truemean is ? = 3.30?
(b) What is the power of this test if the truemean is ? = 3.28?
(c) What is the power of this test if the truemean is ? = 3.26?
