The Null Hypothesis, Ho 无效假设 States the Assumption (numerical) to be tested e.g. The average TV sets in US homes is at least 3(H0:u>3) Begin with the assumption that the null hypothesis iS TRUE. (Similar to the notion of innocent until proven guilty o Refers to the Status Quo .Always contains the ?=?sign The Null Hypothesis may or may not be rejected.• States the Assumption (numerical) to be tested e.g. The average # TV sets in US homes is at least 3 (H0 : m >3) • Begin with the assumption that the null hypothesis is TRUE. (Similar to the notion of innocent until proven guilty) The Null Hypothesis, H0 无效假设 •Refers to the Status Quo •Always contains the ?= ?sign •The Null Hypothesis may or may not be rejected