Global warming? Because of the high stakes, the falling of the tripod has beencarefully

Chapter 0, Problem 7.40

(choose chapter or problem)

Global warming? Because of the high stakes, the falling of the tripod has beencarefully observed for many years. If the date the tripod falls has been gettingearlier, that may be evidence for the effects of global warming.(a) Make a time plot of the date the tripod falls against year. (b) There is a great deal of year-to-year variation. Fitting a regression line to thedata may help us see the trend. Fit the least-squares line and add it to your timeplot. What do you conclude?(c) There is much variation about the line. Give a numerical description of howmuch of the year-to-year variation in ice breakup time is accounted for by thetime trend represented by the regression line.