Homework: Week 1 Homework 40 pts Score: 0 of 2 pts 2.4.31 Save 21 of 24 (20 comp

Question

Homework: Week 1 Homework 40 pts Score: 0 of 2 pts 2.4.31 Save 21 of 24 (20 complete) W Score: 75.83%, 30.33 or Question Help 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 79 (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.) Enter your answer in the answer box and then click Check Answer 1 part

Explanation / Answer

According to the emperical rule, 68% of the data points lies within 1 standard deviation from mean.

1300 and 1900 are one standard deviation from the mean (1300 = 1600-300, 1900 = 1600+300)

So, 68% of data is between 1300 and 1900

So, number of farms whose land and building values per acre is between $1300 and $1900 = 0.68x79 = 54

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