Based on the following regression output from our housing price model, what is the approximate maximum cost per square foot that is supported by a 68% confidence interval on the slope? Simple linear regression results: Dependent Variable: PRICE Independent Variable: SQFT PRICE = 4781.9307 +61.36668 SQFT Sample size: 117 R(correlation coefficient) = 0.8448 R-sq=0.7136788 Estimate of error standard deviation: 20445.117 Parameter estimates: Parameter Estimate Std. Err. Alternative DF T-Stat P-Value Intercept 4781.9307 6285.482 #0115 0.7607898 0.4483 Slope 61.36668 3.6245918 #0 115 16.930645 <0.0001 a. 67.38
b. 17,101.47
c. 68,47
d. 64.99
e. 8.69.80