Mongolian desert ants. Refer to the Journal of Biogeography (Dec. 2003) study of ant sites in Mongolia, presented in Exercise 11.26

(p. 627). You applied the method of least squares to estimate the straight-line model relating annual rainfall (y) and maximum daily temperature (x). A SAS printout giving 95% prediction intervals for the amount of rainfall at each of the 11 sites is shown at the bottom of the page. Select the interval associated with site (observation) 7 and interpret it practically.

Transcribed Image Text:

SAS output for Exercise 11.111 Predictions Predicted Lower prediction limit of Upper prediction limit of Obs Region Rain Temp Rain Rain Rain 10 11 12345678SOI DryStepp 196 5.7 201.977 179.525 224.430 DryStepp 196 5.7 201.977 179.525 224.430 DryStepp 179 7.0 180.704 163.694 197.714 DryStepp 197 8.0 164.340 150.594 178.085 5 DryStepp 149 8.5 156.157 143.513 168.802 Gobi Dese 112 10.7 120.156 106.038 134.274 Gobi Dese 125 11.4 108.701 92.298 125.104 Gobi Dese 99 10.9 116.883 102.172 131.595 Gobi Dese 125 11.4 108.701 92.298 125.104 Gobi Dese 84 11.4 108.701 92.298 125.104 Gobi Dese 115 11.4 108.701 92.298 125.104