Sheldon has 8 more than three times the Star Trek figurines than Leonard has. Together, they have 60 Star Trek figurines. How many Star Trek figurines does LEONARD have? Create and solve an equation to determine the solution. A: Leonard has 20 B: Leonard has 12 C: Leonard has 13 D: Leonard has 15

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