Activity 1.4 Type I or Type II Directions: Check the box that corresponds to your answer. Situation 1: a quality control expert wants to test the null hypothesis that an imported solar panel is an effective source ofenergy. l3 1. 1'luil'l'iat would he the consequence of a Type I error in this context? They do not conclude that the They do not conclude that the solar panel is effective when it is solar panel is eecye when it is not actually effective. actually effective. They conclude that the solar They conclude that the solar panel panel is effective when it is is elfcctive when it is not actually actually effective. effective. 2. 1What would be the consequence of a Type II error? They do not conclude that the They do not conclude that the solar solar panel is e'ective when it is panel is effective when it is actually not actually effective. They conclude that the solar They conclude that the solar panel panel is effective when it is is effective when it is not actually actually effective. Directions: Write T if the statement is true, otherwise write F. 1. Hypothesis testing is a decision - making process for evaluating claims about a population based on the characteristics of a simple purportedly coming from that population. 2. The null hypothesis is a statement that there is no difference between a parameter and a specific value. 3. Hypothesis testing is another area of Differential Statistics. 4. The process of hypothesis testing involves "making a decision" between two opposing hypotheses. 5. There are two types of hypotheses: the null hypothesis and the alternative hypothesis. II. Which of the following illustrates null hypothesis? Ho: My = Mz Ho: H 250 Him = 150 Ho:u = 150 H, : 100 = 1 Hou= 1 Hotul # 102. 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 Sofia computed the average daily internet usage of her friends to be higher than the global survey, do you think it would be significantly higher? 5. What is your idea of an average value being significantly higher than the global average value? 6. What do you think is the difference between simple comparison of data and hypothesis testing?Keep Me Connected! Directions: Analyze the situation below and answer the questions that follow. According to a survey, the average daily usage of social media worldwide of global internet users amounts to 142 minutes per day. Sofia conducts her own survey among her friends to f'md out if their time spent on social media is signicantly higher than the global survey. Before her survey, she formulated the following claims: Claim A: The average daily usage of social media of her friends is the same as the global average usage. Claim E: The average daily usage of social media of her friends is higher than the global average usage. The table shows Sofia's friends and their respective time spent on social media. . , Minutes per Day Spent on Allen \" _1'EE_ Answer the following questions: 1. 1i.i'1.r"hat statistical data isfare needed to prove which of Soa's claims is accepted or rejected? A medical trial is conducted to test whether or not a certain drug can treat a certain allergy. Upon trial, the tvalue is computed as 1.311. Sketch and complete the table below to discuss the ndings of the medical trial. Justify your decision bywriting an explanation in 51D sentences. Situation 2: A resort owner does a daily water quality test in their swimming pool. If the level of contaminants is too high, then he temporarily closes the pool to perform a water treatment. We can state the hypotheses for his test as: Ho: The water quality is acceptable. Ha: The water quality is not acceptable. 3. What would be the consequence of a Type I error in this setting? The owner closes the pool when it The owner does not close the pool needs to be closed. when it needs to be closed. The owner closes the pool when it The owner does not close the pool does not need to be closed. when it does not need to be closed. 4. What would be the consequence of a Type II error in this setting? The owner closes the pool when it The owner closes the pool when it needs to be closed. does not need to be closed The owner does not close the pool when it does not need to be The owner does not close the pool closed. when it needs to be closed 19 5. In terms of safety, which error has more dangerous consequences in this setting? Type I Error Type II Error