ALL ABOUT STATS

Activity 2: Grouping! Directions: Group the following symbols into two. Place the first group inside Box A and the second group in Box B. x P S $2 D LL 02 A B Guide Questions: 1. What are the symbols that you placed in Box A? Box B? 2. How did you categorize each symbol or notation? 3. What mathematical principle did you consider in answering the activity? 4. Which symbols seemed to be familiar to you and which are not?Activity 4-5. What Is Your Parameter? Directions: Determine the parameter to be tested in each situation by writing your answer on a separate sheet of paper. 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 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. 4. Records of the Department of Health (DOH) revealed that 14.7% of the country's Filipino smokers have maintained their habit of smoking