GENERAL INSTRUCTION: Write your answer on a separate paper ACTIVITY-1: Answer the following question on a sheet of paper. 1. Differentiate a null hypothesis from an alternative hypothesis. 2. Differentiate the non-directional test from the directional test. 3. Given the null hypothesis. \"The mean age of the patients in a hospital is equal to 26". state the alternative hypothesis if the test is a. right-tailed; b. left-tailed c. two-tailed