Assume that you're considering a hypothesis test for population mean. In each part, express the alternative hypothesis symbolically and identify the hypothesis test as two tailed, left talied, and right tailed.
(a) You want to decide whether the population mean is different from a specified value µ0
(b) You want to decide whether the population mean is less than a specifield value µ0
(c) You want to decide whether the population mean is greater than a specified value µ0