Mrs rich wants to have balloons and pinwheels for her son’s birthday party. the balloons come in packages of 15 and the pinwheels come in packages of 30. how many packages of each will she need to get an even number of ballons and pinwheels? and how many balloons and pinwheels will she have all together?

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