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Three streets in Los Angeles have different tree types - pine, jacaranda, and ash. Counts of three common bird species- house finch, northern mockingbird, and
Three streets in Los Angeles have different tree types - pine, jacaranda, and ash. Counts of three common bird species- house finch, northern mockingbird, and house sparrow - are taken on each of the three streets. Below are are table of counts. Are the bird species preferences independent of the street? tree species pine jacaranda ash bird house finch 9 9 26 species northern mockingbird 11 16 6 house sparrow 14 8 (a) Make a segmented bar chart of the conditional distribution of bird species, comparing the three streets. (b) Give a suitable hypothesis to address the question addressed above. (c) Create the "expected" table. (d) Create the table of residuals. (e) Explain how you would compute the x2 test statistic from the residual table. (f) Use R to perform the x2 test and state your result. g) Use the table of residuals to state which trees to plant to attack more of each species of birds - house finch, northern mockingbird, and house sparrow. Explain your
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