The underlying assumption or null hypothesisis that the true median for the population M is,in fact, the hypothesized value M0. Thehypothesis test then takes one of three forms:• Two-tailed. H0: M = M0 and Ha: M ≠ M0. Thealternative hypothesis states that the values of Xitend to be different (either smaller or larger) thanM0.• Left-tailed. H0: M ≥ M0 and Ha: M < M0. Thealternative hypothesis states that the values of Xitend to be smaller than M0.