We want to test whether or not the addition of 3 variables to a model will be st

Question

We want to test whether or not the addition of 3 variables to a model will be statistically significant. You are given the following information based on a sample of 25 observations. Y-6242-1.836%, + 25.625, SSE-725 SSR-526 The equation was also estimated including the 3 variables. The results are Ye 59.23-1.762x, +25.638 16 237x3+15 297%-1872x5 SSE = 520 SSR = 731 Refer to Exhibit 16-6 The value of F- statistic (test statistic) for testing which model has significantly lower SSE is: F-2.497 F-3.6 F-4.55 F-1.775

Explanation / Answer

As per the Chegg policy, we are advised to do only one question at a time so i am attempting 58th.

58. To test the individual parameters,

Degrees of freedom = n - 2 = 25 - 2 = 23

Critical value for 23 degrees of freedom and 5% level of significance:

tc = 2.069

Option B is correct.

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