Suppose X is normally distributed with a mean of μ=10 and a variance of σ2=9. Further suppose that a random sample of n=50 has been taken from this population. Which of the following statements is/are true about the distribution of the associated sample mean, ¯X?Multiple choice
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Suppose that Quackers now runs 200 people in each experiment. Which of the panels A-E (as shown in Q29 above) most accurately captures what you would expect the sampling distribution of the mean to look like?
Suppose there exists some variable whose true population distribution is shown in the diagram below. Because of a wealthy benefactor, Quackers is able to run 5000 experiments; in each of these, he samples independently from the true population distribution and measures the mean of the sample. Suppose Quackers runs one person in each experiment. Which of the panels A-E above most accurately captures what you would expect the sampling distribution of the mean to look like?
Suppose that Quackers only runs 1 person in each experiment. Which of the panels A-E (as shown in Q29 above) most accurately captures what you would expect the sampling distribution of the mean to look like?
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