A sample is randomly selected from a population with a mean of μ = 50, and a treatment is administered to the individuals in the sample. After treatment, the sample is found to have a mean of M = 56 with a standard deviation of s = 8. Which test is most appropriate to determine if there is a difference between the means?
z-score test
single-sample t-test
independent samples t-test
related-samples t-test
Edited to add: This was the only information provided.
A sample is randomly selected from a population with a mean of μ = 50, and a treatment is administered to the individual
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answerhappygod
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