Which of the following possibilities will form a triangle? A. Side 15cm, Side 6cm, Side 8cm. B. Side 15cm, Side 6cm, Side 9cm. C. Side 16cm, Side 9cm, Side 6cm. D. Side 16cm, Side 9cm, Side 8cm​

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