Exercises In our first exercise we consider data related to the NASA Space Shuttle Challenger Disaster. 1. The Challenger had two booster rockets. each with three joints sealed by O-rings. A damaged O-ring can allow a gas leak, which may lead to disaster. The forecast for the time that the Challenger was due to launch was 31 0F, whilst the coldest previous launch temperature was 53 CT. The day before launch, the engineers met to decide whether the flight should go ahead. They considered a plot of damaged Orings against temperature using data from previous flights. Read in the data shuttle.txt using read.table and reproduce this plot, i.e. plot damage vs. tempF for observations where damage == 1 (consider the limits of the y-axis carefullyl)