please help me answer this one, thank you!

B. Solve the following problems. 1. A researcher wants to estimate the average number of children with congenital heart disease who are between the ages of 1-5 years old. How many children should be enrolled in this study, if the researcher plans on using a 95% confidence level and wants a margin of error of 0.5 and standard deviation 4? 2. Allan, a Grade 12 senior high school student, wants to estimate the average number of students who will pursue collage degree in a certain school. How many sample sizes does he need, if he plans to use 98% confidence, 0.5 as the margin of error, and a standard deviation of 5. C. Find other methods of determining sample size, then compare these with the formula proposed in this module. If you are to select a method, which will it be? Explain your idea.Additional Activities A. Determine the sample size, given the following data: 1. s = 6, E = 0.5, confidence level= 95% 2. S = 5, E =0.04, confidence level=98% 3. s = 8, E = 3, confidence level=99% E = 5, confidence level=95% 4. s = 10, 5. s = 7, E = 2, confidence level= 99%What I Have Learned I. Fill in the blanks. Write your answer on your answer sheet. A confidence interval, in statistics, refers to the probability that a ( 1) parameter will fall between a set of values for a certain proportion of times. Confidence intervals measure the degree of uncertainty or certainty in a . (2) method. They can take any number of probability limits, with the most common being a 95% or 99% confidence level. (3) is the absolute difference between the upper confidence limit and the lower confidence limit. There are two things to remember when we decided on the quality of the sample size we need: ( 4 ) and the (5) of the interval. What I Can Do Solve the following problems. Write your answer on your answer sheet. 1. You want to estimate the mean gasoline price within your town to the margin of error of 5 centavos. Local newspaper reports the standard deviation for gas price in the area is 25 centavos. What sample size is needed to estimate the mean gas prices at 95% confidence level? 2. Carlos wants to replicate a study where the highest lowest observed value is 13.8 while the lowest is 13.4. He wants to estimate the population mean u to the margin that he needs. of error of 0.025 of its true value. Using 99% confidence level, find the sample size n