The radius of the sphere is 6 millimeters. Which equation can be used to find the surface area of the sphere? A sphere with a radius of 6 millimeters. S = 4 pi r squared = 4 (6) squared S = 4 pi r squared = 4 pi (12) squared S = 4 pi r squared = 4 pi (6) squared + 2 pi (6) S = 4 pi r squared = 4 pi (6) squared

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