Suppose the following estimated equation. Standard errors are in parentheses. Y = 11 + 10.8X, + 11.13X2 + 3.20X3 n = 25 R2 = 0.465 (7.5) (4.45) (4.88) (1.45) With a confidence interval estimation approach, you are to test if the variable of X, is negatively significant in the model. Use alpha = 0.05. Answer the followings. a. State the hypotheses. b. Construct the interval estimation. Is the variable of X, negatively significant? Explain C.

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Suppose the following estimated equation. Standard errors are in parentheses.
Y
11
10.8X,
+ 11.13X2 + 3.20X3 n = 25
R2 = 0.465
(7.5)
(4.45)
(4.88)
(1.45)
With a confidence interval estimation approach, you are to test if the variable of X, is negatively significant in the model. Use alpha = 0.05. Answer the followings.
a. State the hypotheses.
b.
Construct the interval estimation.
Is the variable of X1 negatively significant? Explain
C.
Transcribed Image Text:Suppose the following estimated equation. Standard errors are in parentheses. Y 11 10.8X, + 11.13X2 + 3.20X3 n = 25 R2 = 0.465 (7.5) (4.45) (4.88) (1.45) With a confidence interval estimation approach, you are to test if the variable of X, is negatively significant in the model. Use alpha = 0.05. Answer the followings. a. State the hypotheses. b. Construct the interval estimation. Is the variable of X1 negatively significant? Explain C.
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