2. What is the average daily usage of social media of her friends? Compare it with the previous average usage. 3. Which of the two claims could probably be true? Why? 4. If Soa computed the average daily internet usage of her friends to be higher than the global survey, do you think it would be signicantly higher? 5. What is your idea of an average value being signicantly higher than the global average value? 6. What do you think is the difference between simple comparison of data and hypothesis testing? 0 What Is It Hypothesis testing is a statistical method applied in making decisions using experimental data. Hypothesis testing is basically testing an assumption that we make about a population. A hypothesis is a proposed explanation, assertion, or assumption about a population parameter or about the distribution of a random variable. Here are the examples of questions you can answer with a hypothesis test: 0 Does the mean height of Grade 12 students differ from 66 inches? . Do male and female Grade 7 and Grade 12 students differ in height on average? . Is the proportion of senior male students' height significantly higher than that of senior female students? Key Terms and Concepts Used in Test Hypothesis The Null and Alternative Hypothesis '4' The null hypothesis is an initial claim based on previous analyses, which the researcher tries to disprove, reject, or nullify. It shows no signicant difference between two parameters. It is denoted by ?-,u. I The alternative hypothesis is contrary to the null hypothesis, which shows that observations are the result of a real effect. It is denoted by ? '_7 . Note: You can think of the null hypothesis as the current value of the population parameter, which you hope to disprove in favor of your alternative hypothesis