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What is the formula that should be leveraged below? preferably if it can be done in excel.


Consider two experiments. First, from a population that is normally distributed with mean 10, we select one item and find its weight. Let D1 be the distribution of possible outcomes from experiment 1. Second, we take a sample of 5 items from the same population and calculate the average weight of the 5 items. Let D2 be the distribution of possible outcomes (sample averages) resulting from experiment 2. Which of the following statements is true and which is not true?

A. D1 and D2 have the same spread (standard deviation)

B. D1 and D2 have the same mean.

C. D1 is wider than D2

D. D1 is narrower than D2

E. D1 and D2 are both normally distributed.

Top Answer

A. D1 and D2 have the same spread (standard deviation) FALSE====== (different sample size/different spread) B. D1 and D2 have... View the full answer

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