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Question: The data set agsrs.dat also contains information on other variables. For each of the following quantities, plot the data and estimate the population mean for that variable, along with its standard error. Give a 95% CI for your estimate.

a. Number of acres devoted to farms in 1987

b. Number of farms, 1992

c. Number of farms with 1000 acres or more, 1992

d. Number of farms with 9 acres or fewer, 1992

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