Benito spent $1691 to operate his car last year. some of these expenses are listed below. benito's only other expense was for gasoline. if he drove 7138 miles, what was the average cost of the gasoline per mile? operating expenses insurance $831 registration $174 maintenance $90 a. 1.05 cents b. 8.35 cents c. 60.97 cents d. not enough information given

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