A classic physics problem states that if a projectile is shot vertically up into the
air with an initial velocity of 162 feet
per second from an initial height of 117
feet off the ground, then the height of
the projectile, h, in feet, t seconds after
it's shot is given by the equation:
h = – 16t2 + 162t + 117
Find the two points in time when the
object is 160 feet above the ground.
Round your answers to the nearest
hundredth of a second (two decimal
places)

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