The mean value of land and buildings per acre from a sample of farms is ​$1400​, with a standard deviation of ​$200. The data set has a​ bell-shaped distribution. Assume the number of farms in the...




The mean value of land and buildings per acre from a sample of farms is
​$1400​,

with a standard deviation of
​$200.

The data set has a​ bell-shaped distribution. Assume the number of farms in the sample is
70.










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Part 1

​(a) Use the empirical rule to estimate the number of farms whose land and building values per acre are between
​$1200

and
​$1600.




48

48

farms ​(Round to the nearest whole number as​ needed.)

Part 2

​(b) If
21

additional farms were​ sampled, about how many of these additional farms would you expect to have land and building values between
​$1200

per acre and
​$1600

per​ acre?



enter your response here


farms out of
21

​(Round to the nearest whole number as​ needed.)




Jun 02, 2022
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