Old Faithful (Data file: old faith) The data file gives information about eruptions of Old Faithful Geyser during October 1980. Variables are the Duration in seconds of the current eruption, and the...

Old Faithful (Data file: old faith) The data file gives information about eruptions of Old Faithful Geyser during October 1980. Variables are the Duration in seconds of the current eruption, and the Interval, the time in minutes to the next eruption. The data were collected by volunteers and were provided by the late Roderick Hutchinson. Apart from missing data for the period from midnight to 6 a.m., this is a complete record of eruptions for that month.

Old Faithful Geyser is an important tourist attraction, with up to several thousand people watching it erupt on pleasant summer days. The park service uses data like these to obtain a prediction equation for the time to the next eruption. Draw the relevant summary graph for predicting interval from duration and summarize your results.