Instructions tell you how to get the data in R R has built in dataset called...

Instructions tell you how to get the data in R

R has built in dataset called Iris. This famous (Fisher's or Anderson's) iris data set gives the measurements in centimeters of the variables sepal length and width and petal length and width, respectively, for 50 flowers from each of 3 species of iris. The species are Iris setosa, versicolor, and virginica. We are interested in estimating the length of Petal (Y) using the length of Sepal (X).

First, load the dataset using the following command: data("iris")

You can find the general information about this data by typing: summary(iris)

Find the estimated regression line equation.

Find the predicted length of Petal when the length of Sepal is 5.5

Conduct a hypothesis testing that the regression slope. (H0: beta1 =0 vs Ha: beta1 =/= 0)

Find the ANOVA table of the regression

Find the coefficient of determination (R²) value and interpret it.

Solutions

Expert Solution

The needed r code is given below

orchestra answered 1 year ago

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