Josh hit a baseball straight up into the air. The equation below describes the height of the ball, h, as a function of time, t. What is the height of the ball after 3 seconds? *
h (t) = -9.812 + 30t + 1.5
3.3 meters
62.1 meters
120.9 meters
O 179.7 meters

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