Activity 2

A. Identify the type of errors by checking the box that corresponds to your answer. Situation 1: 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. 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. 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.B. Determine the parameter to be tested in each situation. Translate it into symbols. 1. The television habits of children were observed and found out that the standard deviation is 12.4 hours per week. 2. A newspaper article stated that students in the country take an average of 4 years to finish their undergraduate degrees. Suppose that you believe the mean time is longer, you conducted survey on 49 students. The result obtained a sample mean of 5 with a sample standard deviation of 1.2. 3. According to DOLE, registered nurses in government earned an average monthly salary of PQJOO. For that same year, a survey was conducted on 41 registered nurses to determine if the mean salary is higher than the previous survey. The sample average was P10,000 with a sample standard deviation of P2500. 4. Records of the Department of Health (DOH) revealed that 14.7% of the country's Filipino smokers have maintained their habit of smoking