Find the regression equation/2022

  1. The data below represent duration times (in seconds) of eruptions and time intervals (in minutes) to the next eruption for randomly selected eruptions of the Old Faithful geyser in Yellowstone National Park.

Table 5 – Old Faithful Eruptions

Duration 242 255 227 251 262 207 140
Interval After 91 81 91 92 102 94 91

 

  1. Find the regression equation.

 

  1. Construct a residual plot for the data. Use the table below to guide you.

Table 6 – Guided Residual Calculation
Point on Plot
         
         
         
         
         
         
         

 

Blank graph

 

 

 

  1. Is a linear model appropriate for this data?  Explain your answer.