Hi, I am getting a bit stuck on a problem I am trying to solve and I would appreciate if someone can help me. I am trying to solve for z(obtained).
In my problem, I have the mean and standard deviations for sample 1, sample 2 and a population mean and standard deviation. Sample 1 has a sample size of 25, as does sample 2. The population sample size is 50. I am trying to compare sample 1 to the population. I first subtracted the population mean from the sample mean. Next, I am supposed to divide the population standard deviation by the square root of the sample size, and this is where I am getting stuck. Am I supposed to divide it by the square root of the sample size of sample 1 (25) or by the square root of the population sample size (50)?
Thank you in advance!
In my problem, I have the mean and standard deviations for sample 1, sample 2 and a population mean and standard deviation. Sample 1 has a sample size of 25, as does sample 2. The population sample size is 50. I am trying to compare sample 1 to the population. I first subtracted the population mean from the sample mean. Next, I am supposed to divide the population standard deviation by the square root of the sample size, and this is where I am getting stuck. Am I supposed to divide it by the square root of the sample size of sample 1 (25) or by the square root of the population sample size (50)?
Thank you in advance!