1. The Research and Development department of a paint company has developed an additive that it hopes will increase the ability of the company's stain for outdoor decks to resist water absorption. The current formulation of the stain has a mean absorption rate of 35 units. Before changing the stain, a study was designed to evaluate whether the mean absorption rate of the stain with the additive was decreased from the current rate of 35 units. a) State the appropriate null and alternative hypotheses. Null hypotheses: Ho : u>=35 alternative hypotheses: Ha: u