If f(x) = 2 - 1 g) = x2 – 9. what is the domain of g(x) = Rx)? and TE ОА. A. (-0, 2] and [2, 0) OB. [0, 4) and (4, 00) C. 6-0, 2] and [4, 00) OD. (-0, -2) and (2, 0)​

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