Question: We have a X of 40 under the condition of
We have a X of 40 under the condition of people tested in the morning versus a X of 60 for people tested in the evening. Assuming they accurately represent their populations, how do you envision this relationship in the population?
Answer to relevant Questions(a) What does a sampling distribution of means show? (b) A mean having a z beyond ±1.96 is where? (c) How often do means in the region of rejection occur when dealing with a particular raw score population? (d) What does ...(a) When do you use a one-tailed test? (b) When do you use a two-tailed test? In question 13, (a) What statistical principle should Foofy be concerned with? (b) Identify three problems with her study from a statistical perspective. (c) Why would correcting these problems improve her study? (a) How would you report your results if a = .05, N = 43, and tobt = +6.72 is significant? (b) How would you report your results if a = .05, N = 6, and tobt = -1.72 is not significant? (a) What is the difference between SX and σX? (b) How is their use the same?
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