Скачать или смотреть Example Exercise: 7.27 (OpenIntro Statistics / Advanced High School Statistics)

Slides are available at:
https://drive.google.com/open?id=1wnn...

Chicken farming is a multi-billion dollar industry, and any methods that increase the growth rate of young chicks can reduce consumer costs while increasing company profits, possibly by millions of dollars. An experiment was conducted to measure and compare the effectiveness of various feed supplements on the growth rate of chickens. Newly hatched chicks were randomly allocated into six groups, and each group was given a different feed supplement. Below are some summary statistics from this data set along with box plots showing the distribution of weights by feed type.

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http://www.openintro.org/books