Exhibit 15-3
In a regression model involving 30 observations, the following estimated regression equation was obtained: For this model SSR = 700 and SSE = 100.
-Refer to Exhibit 15-3. The critical F value at 95% confidence is
A)2.53
B)2.69
C)2.76
D)2.99

Question

Exhibit 15-3
In a regression model involving 30 observations, the following estimated regression equation was obtained:  For this model SSR = 700 and SSE = 100.
-Refer to Exhibit 15-3. The critical F value at 95% confidence is
A)2.53 
B)2.69 
C)2.76 
D)2.99

Quizplus · Accepted Answer

To find the critical F value, we need to use the F-distribution table with degrees of freedom (df) of (k, n – k – 1) = (1, 28) for the numerator (SSR) and denominator (SSE) of the F-statistic. Using a significance level (α) of 0.05, we look up the value of F at the intersection of the 1st row (df numerator) and the 28th column (df denominator), which is 2.76. Therefore, the critical F value at 95% confidence is 2.76.

Exhibit 15-3 In a Regression Model Involving 30 Observations, the Following Estimated