1. It is a process of gathering evidences to either support or rebut a claim. A. Hypothesis B. Hypothesis testing C. Investigation 2. What type of error is committed when a true null hypothesis is rejected? A. Type I B. Type II C. Type III 3. You are testing a hypothesis at a = 0.01. What is the probability of committing a Type I error? A. 99% B. 10% C. 1% 4. A test statistic is found to have a p value of 0.003. With 0.05 level of significance, what is the decision for this hypothesis test? A. Reject null B. Not to reject null C. Both 5. The alternative hypothesis of a certain study is "The mean age of Senior High School students is equal to 18". Which of the following is the null hypothesis if the test is two tailed? A. The mean age of Senior High School students is less than 18 B. The mean age of Senior High School students is equal to 18 C. The mean age of Senior High School students is greater than 18