Question

We have a dataset with n = 10 pairs of observations (xi; yi), and
Xn
i=1
xi = 683;
Xn
i=1
yi = 813;
Xn
i=1
x2i
= 47; 405;
Xn
i=1
xiyi = 56; 089;
Xn
i=1
y2
i = 66; 731:
What is an approximate 95% prediction interval for the response y0 at x0 = 60?

We have a dataset with n= 10 pairs of observations (li, Yi), and n n Ii 683, Yi = 813, i=1 п n n m = 47, 405, Xiyi = 56,089,

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Answer #1

Given E xi 683 x = n=10 813 81.3 47405468.3 )° x16 ssy = 2 SS x = {x, ² nx2 = Ssx=756.1 Ssy={y;2_ny2 66731 -10 ( 81.3) - 63 4Bo SSE re V n-2 27.2136291=5.21666 839 P = ï - B, F = 81.3-0.742098 (6803) 30.61 47066 ŷ = 30.6147 +0.7421 x at ý = 3016147 +

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