Choose the right answer. Plane A leaves Tulsa at 2:00 p. m., averaging 300 mph and flying in a northerly direction. Plane B leaves Tulsa at 2:30 p. m., averaging 225 mph and flying due east. At 5:00 p. m., how far apart will the planes be? miles

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