{bi Conduct a hypothesis test [showing all the steps} to determine if the university should spend money to air the commercial {i.e., did the commercial improve the attitudes?) Assume an alpha level = 0.05. You may use SPSS. 3. For the sample difference scores below. determine if the sample differs from D = 0. Use alpha = 0.01. I ? I +31PBfJYEiQJDh1 online_texl:_entr|