A population has a standard deviation of 299. We take a random sample of size 56 from this population. Let Xbar be the sample mean and let Xtot be the sample sum of our sample. These are random variable a) What is the variance of this population? 89401 b) What is the variance of Xbar? (to three decimal places) 1596.446 c) What is the standard deviatiofi of Xbar? (to three decimal places) 39 956 d) What is the variance of Xtot? (to three decimal places) 2237 511 Enter a number. d) What is the standard deviation of Xtot? (to three decimal places) e) What is the smallest sample size, n, which will make the standard deviation of Xtot at least 2589? f) What is the smallest size sample, n, which will make the variance of Xtot at least 9,500,000?|| h) Copy your R script for the above into the text box here.

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.