Round to the fourth decimal place:

what is the correlation coefficient between pile length(ft) - Estimated and the pile length(ft)-actual?

A deep-foundation engineering contractor has bid on a foundation system for a new building housing the world headquarters for a Fortune 500 company. A part of the project consists of installing auger cast piles. The contractor was given bid information for cost-estimation purposes which consisted of the estimated depth of each pile; however, actual drill footage of each pile could not be determined exactly until construction was performed. The contractor developed a linear regression model to estimate the actual pile length as a function of the estimated pile lengths. Use a significance level of 0.05 for all hypothesis tests and intervals. What is the correlation coefficient between Pile Length(ft.)-Estimated and the Pile Length(ft.)-Actual? Analysis of Variance Sum of Source DF Squares Mean Square F Ratio Model 1 52569.023 52569.0 537.7953 Error 309 30204.481 97.7 Prob > F C. Total 310 82773.505 <.0001 parameter estimates term estimate std error t ratio prob>|t) Lower 95% Upper 95% Intercept 11.614377 1.137095 10.21 <.0001 pile length>