Loads the mtcars dataset and normalizes it. Shuffles the normalized dataset. Splits the shuffled data into a training set and a test set. Applies the k-NN algorithm to predict the transmission type (am) of the cars in the test set, using a k value of 3. Prints the model predictions. Creates a scatter plot of miles per gallon (mpg) vs horsepower (hp), colored by transmission type (am). Please note that the am column in the mtcars dataset is a binary variable, where 0 indicates an automatic transmission and 1 indicates a manual transmission.