This is my first time posting. I'm working on a statistics
problem that I'm having difficulty understanding. Here is the
problem: The Praxis II test was given to a sample of 1573
prospective teachers. The mean of these scores was 1053 and the
standard deviation was 92. a.) Give a 95% confidence interval (μ
± 2ơ) for the mean (average) score in the population of all
young women. b.) Suppose that a sample of 300 prospective
teachers had produced the same mean and standard deviation.
Again, give the 95% confidence interval (μ ± 2ơ) for the mean
(average) score in this case. I have gone over and over but I'm
not understanding something because it feels like information is
missing based on what I have been doing. I appreciate any help
with understanding the problem.