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The mean value of land and buildings per acre from a sample of farms is ?$1600?,...

The mean value of land and buildings per acre from a sample of farms is ?$1600?, with a standard deviation of ?$300. The data set has a? bell-shaped distribution. Assume the number of farms in the sample is 76. ?(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between ?$1300 and ?$1900. ____ farms ?(Round to the nearest whole number as? needed.) ?(b) If 20 additional farms were? sampled, about how many of these additional farms would you expect to have land and building values between ?$1300 per acre and ?$1900 per? acre? ____farms out of 20 ?(Round to the nearest whole number as? needed.)

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