That's incorrect. A null hypothesis Upper H 0 is a statistical hypothesis that contains a statement of equality, such as less than or equals, equals, or greater than or equals. The alternative hypothesis Upper H Subscript a is the complement of the null hypothesis. It is a statement that must be true if the null hypothesis is false and contains a statement of strict inequality, such as greater than, not equals, or less than. Determine the relationship that must exist between the weights before and after infection by pneumonia for the claim to be true