(See Steps) You have given a test to a class of 120 subjects. The mean score is 80 and the standard deviation is 8. What is the standard error of the mean?
Question: You have given a test to a class of 120 subjects. The mean score is 80 and the standard deviation is 8.
- What is the standard error of the mean?
- Set up the 95% and 99% confidence intervals for the mean.
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![[Step-by-Step] Consider the following hypothesis test H_0:μ](/images/solutions/MC-solution-library-30373.jpg "[Step-by-Step] Consider the following hypothesis test H_0:μ =25")
[Step-by-Step] Consider the following hypothesis test H_0:μ =25
![[All Steps] General: Suppose that x has](/images/solutions/MC-solution-library-30374.jpg "[All Steps] General: Suppose that x has a distribution with µ")
[All Steps] General: Suppose that x has a distribution with µ
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