Statistics and Probability

Ill Direction: Determine the parameter to be tested in each situation. 1. The television habits of children were observed and found out that the standard deviation is 12.4 hours per week. Answer: 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. Answer: 3. According to DOLE, registered nurses in government earned an average monthly salary of P9,700. 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 P2,500. Answer: 4. Records of the Department of Health (DOH) revealed that 14 7% of the country's Filipino smokers have maintained their habit of smoking