The partial fraction decomposition of latex: \frac{x-9}{x^2-3x-18} x − 9 x 2 − 3 x − 18 is latex: \frac{a}{x-6}+\frac{b}{x+3} a x − 6 + b x + 3 . find the numbers latex: a\: a and latex: b b . then, find the sum latex: a+b a + b , which is a whole number. enter that whole number as your answer.

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