ACTIVITY 2: CRITICAL VALUES Find the critical values For each. 1. z :12 for the 95% confidence interval 2. z "12 for the 99% confidence interval 3. z \Activity 1: Types of Error 1. Make a research about hypothesis testing, definition of hypothesis testing and its use in conducting a research. 2. After doing the research, you will create an essay to justify the data you collected from different sources Activity 2 Identify the level of confidence of the following level of significance. 1. 7% 2. 5.5% 3. 3.5% 4. 8.9% 5 . 10%% 6. 1.1% 7. 4.75% 8. 7.20%% 9. 8.24% 10. 2.11%Name: Grade/Strand & Section Date: Activity 1: Null and Alternative Hypothesis Given the following hypotheses: A. Formulate the Alternative Hypothesis B. Formulate e Symbolic Forms of Ho and Ha. C. Determine whether it is one tail or two tails and shade the critical region/s under the curve. 1. The average birthweight of a newborn child is 3 kg. A. Alternative Hypothesis: B. Ho Ha: C. Number of tail/s: 2. The average scores of selected students in an entrance exam is 95.5% percentile. A. Alternative Hypothesis: B. Ho: He: C. Number of tail/s E 3. The mean salary bracket of 100 newly graduate Accountant students is less than P20,000 - P25,500, A. Alternative Hypothesis: B. Ho: Ha C. Number of tail/s:4. The mean score in diagnostic exam of all freshmen is higher than their mean score in 600S assessment exam in Statistics. A. Alternative Hypothesis: B. Ho Ha: C. Number of tail/s: Activity 2: Test Statistic 1. When to use z and t test? Explain briefly. E