structure(list(x = c(108.448243992603, 88.4197989907866, 515.362096476673,
81.7591204447437, 99.0006958346383, 69.0624013486279, 130.845344345704,
109.747845137572, 78.1740107838889, 100.443473869653, 67.3086590944859,
70.5990381250307), y = c(3.777, 4.878, 4.503, 4.559, 4.3505,
3.13, 4.5835, 4.2985, 4.4895, 3.332, 4.5805, 6.6235)), .Names = c("x",
"y"), row.names = c(NA, -12L), class = "data.frame", na.action = structure(c(1L,
2L, 3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 13L, 14L, 15L, 18L,
19L, 29L), .Names = c("1", "2", "3", "4", "5", "6", "7", "13",
"14", "31", "32", "34", "35", "36", "39", "40", "50"), class = "omit"))

Estimate Std. Error t value Pr(>|t|)
(Intercept)  4.432e+00  3.875e-01  11.436 4.59e-07 ***
x           -5.159e-05  2.233e-03  -0.023    0.982

Estimate Std. Error t value Pr(>|t|)
(Intercept)  5.34221    1.37170   3.895  0.00365 **
x           -0.01012    0.01471  -0.688  0.50852