A circle has a diameter of 3 meters. Which statement about the circumference and area is true?
A. A comparison of the area and circumference is not possible since the area cannot be determined.
B. The numerical value of the circumference and area are equal.
C. The numerical value of the circumference is greater than the numerical value of the area.
D. The numerical value of the circumference is less than the numerical value of area.

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