2.4.33 Question Help The mean value of land and buildings per acre from a sample

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2.4.33 Question Help The mean value of land and buildings per acre from a sample of farms is $1800, with a standard deviation of $300. The data set has a bell-shaped distribution. Using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean). Are any of the data values very unusual (more than three standard deviations from the mean)? $1928 $2539 S1829 S730 $2019 $1205 Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply. A. S2019 B. $1829 c. S2539 D. $1928 E. $730 $1205 Click to select your answers) and then click Check Answer.

Explanation / Answer

Range of 2 standard deviations = (1800 - 2*300) to (1800 + 2*300) = 1200 to 2400

Range of 3 standard deviations = (1800 - 3*300) to (1800 + 3*300) = 900 to 2700

Hence,

Farms which are unusual = $730, $2539

Farms which are very unusual = $730

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