Answer asap leonard needs to restrict the domain of the tangent function so that the inverse is a function. which description best describes how he could restrict the domain? a) so that y = tan(x) is always decreasing b) so that y = tan(x) contains 3 vertical asymptotes c) so that y = tan(x) contains 2 vertical asymptotes d) so that y = tan(x) completes one cycle of length 2π answer i dont want to fail my test

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