What I Can Do Activity 3: Perform Me! Dear student, For this week's assessment, note the learning competency, the question to be answered, and the rubric on how you will be evaluated. You must complete the three parts: CLAIM, EVIDENCE, and REASONING. On CLAIM, you will state your stand about the questions; on EVIDENCE, you will provide data supporting your claim; and on REASONING, you must state mathematical concepts/ideas that could justify the claims. Learning Competency: Draw a conclusion about the population proportion based on the test- statistic value and the rejection region. A study believes that 70% of adults in the Philippines own a cellphone. A cellphone manufacturer believes that the actual number is much QUESTION less than 70%. 100 Filipino adults were surveyed, of which 74 have cellphones. Using a 5% level of significance, is the cellphone manufacturer's claim valid or not? CLAIM EVIDENCE REASONINGand more of the students like Mathematics What's More Activity 2: Claim It or Not Directions: Draw the conclusion for each of the following by using the five-step hypothesis testing procedure. Show your solution either using the critical value method or the p- value method. Finally, write your answer on a separate sheet of paper. 1. The manufacturer of a local cellphone brand claims that 65% of their customers believed that the cellphones they bought from them are as good as the international brands. To test the claim, they surveyed one gadget store. Out of the 90 randomly selected shoppers, 75 of them agreed with the manufacturer's claim. Is the claim of the manufacturer valid? Test at 0.01 significance level. 2. A group of eye specialists claims that 25% of their patients with astigmatism are teenagers After surveying 42 patients in a certain clinic, they found that 8 of them are teenagers. Using a 90% confidence level, test whether their claim is supported or not. 3. A nationwide poll claims that the country's president has less than a 64% approval rating. In a random sample of 120 people, 69 people gave the president a positive approval rating. Test the claim at a 0.05 level of significance. Self Learning Module