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Population Shape and Mean

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Part A: Why is the population shape of concern when estimating a mean? What does sample size have to do with it? Explain.

Part B: Define the standard error of the mean. What happens to the standard error as the sample size increases? Explain.

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The concepts of population shape and standard error are explained.

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Why is the population shape of concern when estimating a mean? What does sample size have to do with it? Explain!

The sample size less the probability that what is observed is due to possibility. However, we get into moving back profits, cost, and inconvenience if the sample is too large. The least that will show statistical significance with reasonable exactness is about 25. When we estimating the mean we use the arithmetic mean which is not a strong measure. Population shape shows the frequency of values that can be ...

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