- #1

adgalo

- 3

- 0

My questions are the following:

1.How can I test if there is a difference between two sample means from SAME population?

2. If I run another survey for NURSES only, with the same sample size (n=500), will I get a sample mean price lower than the sample mean price of SET 2 (which is $40)?

3. Does the sample mean of SET 1, which is just a subset of SET 2 in terms of composition, is always lower than the sample mean of SET 2?

Thank you very much