13,95
x y x2 y2 xy n = 7
12 10 144 100 120 Σx = 55
7 5 49 25 35 Σy = 41
2 1 4 1 2 Σx2 = 527
8 4 64 16 32 Σy2 = 339
13 12 169 144 156 Σxy = 416
9 7 81 49 63
4 2 16 4 8
SKxx = 94,857
SKyy = 98,857
SPxy = 93,857
b) b1 = 0,989
b0 = -1,917
d) r = 0,969
r2 = 0,939
e) s = 1,094
f) α = 0,010
t5;0.005 = 4,032
sb1 = 0,112
β1 ε 0,54 1,44
α = 0,050
g) t5;0.025 = 2,571
t = 8,805
α = 0,050
h) t5;0.025 = 2,571
t = 8,805