Question 4 The framework below shows the variables for the research titled "Factors that contribute towards customer satisfaction and retention of smartphones". Based on the framework explain/write the following: 1. Explain the difference between Null hypothesis and Alternative hypothesis 2. Explain the difference between a directional and non-directional hypothesis 3. Write at least 5 Null Hypothesis 4. Write at least 5 Alternative hypotheses Conceptual Framework Customer/Tech Support Infrastructure Support Customer Satisfaction Customer Retention/Loyalty (20 Data Security