# Question

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

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

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