Use the following information from a multiple regression analysis to complete pa

Question

Use the following information from a multiple regression analysis to complete parts (a) through (c). n = 25 b_1 = 10 b_2 = 25 s_b_1 = 8 s_b_2 = 4 H_0: beta_2 not equal to 1 H_1: beta_2 = 1 H_0: beta_2 = 1 H_1: beta not equal to 1 H_0: beta_2 not equal to 0 H-1: beta_2 = 0 H_0: beta_2 = 0 H_1: beta_2 not equal to 0 Find the test statistic. (Round to three decimal places as needed.) Find the p-value. (Round to four decimal places as needed.) Is there evidence that the variable X_2 contributes to a model already containing X_1? Yes, since then hypothesis is rejected. No, since the null hypothesis is not rejected.

Explanation / Answer

1] option 4] H0 : beta1 =0 vs Ha : beta is not equal to 0

2] beta2 = 25 , seb2 = 4

tcal =beta2 / seb2 = 25/4 = 6.25

3] pvalue = 0.0001

4] yes , since the null hypothesis is rejected.

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