Based on a sample of 30 observations, the population regression model yi = 0 + 1xi +

Based on a sample of 30 observations, the population regression model
yi = β0 + β1xi + εi
was estimated. The least squares estimates obtained were as follows:
b0 = 10.1 and b1 = 8.4
The regression and error sums of squares were as follows:
SSR = 128 and SSE = 286
a. Find and interpret the coefficient of determination.
b. Test at the 10% significance level against a twosided alternative the null hypothesis that β1 is 0.
c. Find

Transcribed Image Text:

30 Σ (- 2.