Ordered pairs does not represent a function? {(5,−2),(−6,−4),(−2,3),(−1,−4)}
\{(-3, 4), (-8, 0), (3, -8), (-3, -4)\}{(−3,4),(−8,0),(3,−8),(−3,−4)}
\{(6, 3), (-1, 5), (-7, 3), (3, 0)\}{(6,3),(−1,5),(−7,3),(3,0)}
\{(3, 9), (2, 7), (9, 9), (4, -3)\}{(3,9),(2,7),(9,9),(4,−3)}

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95