statistics and probability

The mean IQ of Filipino aging 16 -18 is 86 with a standard deviation of 2. A researcher chooses 40 random sample of teenage from that population. What would be the expected result given he has to determine the following below 1. The mean IQ of the population. 2. The mean IQ of the 40 teenager. 3. The standard deviation of the IQ of the Filipino aging 16 - 18. 4. The value of n or sample size. MAT MOOWANG TV 5. The standard deviation of the sampling distribution. For numbers 6-10 refer to the situation below. The average time it takes the BUNHS student to complete 40 item test in General Mathematics is 40 minutes with a standard deviation of 3 minutes. We shall assume that the data are normally distributed. Given one (1) student in BUNHS is randomly chosen, the probability of him completing the test greater than 43 minutes.. 6. What is the value of u? 7. The value of o 8. The value of z 9. The area that corresponds to the value of z in number 8. 10. What is the probability of him completing the test greater than 43 minutes