7. A research team wants to identify the mean years of education for a population and decides to take a sample from the population. In order to know the range of possible population parameters based...

Extracted text: 7. A research team wants to identify the mean years of education for a population and decides to take a sample from the population. In order to know the range of possible population parameters based on their sample the research team decides to calculate a confidence interval around the theoretical sampling distribution based on their sample. The sample has a mean of 13.5 and a standard error of 1.5 for years of education. a. What is the upper and lower limit of a 95% confidence interval for this sample? You will need to use the Cl formula for this question. Show your work. b. In a statement (1-2 sentences), interpret what this confidence interval means regarding the population parameters.