Test: Test 1 (Ch1 & Ch2) Question 17 of 20 The mean value of land and buildings per acre from a sample of farms is $1300, with a standard deviation of $100 The data set has a bell-shaped distribution Assume the number of farms in the sample is 73. Use the empirical rule to estimate the number of fammis whose land and building values per acre are between $1200 and $1400. farms (Round to the nearest whole number as needed.)