Assume the hourly wage rate for a fast-growing online job is normally distributed with a mean of u = $28.00. Suppose a random sample of n = 29 workers revealed a mean wage of a = $27.40 and a standard deviation of s = $1.80. At a = 0.025, is there enough evidence to conclude that the mean hourly wage is less than $28.00? a. Select the appropriate alternative hypothesis, H1 or Ha : Ou $28.00 Ou > $27.40 Ou + $27.40 Ou