Adrama club is planning a bus trip to new york city to see a broadway play. the cost per person for the bus rental varies inversely to the number of people going on the trip. it will cost $30 per person if 44 people go on the trip. how much will it cost per person if 55 people go on the trip? round your answer to the nearest cent, if necessary. $48.00 $24.00 $12.50 $33.00

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