Mathematics, 21.11.2019 19:31, kayolaaaa53
Suppose you estimated the model y = b1 + b2x2 + b3x3 +e and discover that all the pa- rameter estimates are statistically significant (at the a = 5% level), and that all the other diagnostics are consistent with mr1-mr5. however, you forgot to include the variable 24, and therefore, decide to estimate the model y = b1 + b2x2 + b3x3 + b4x4 + e but discover that all the variances of the estimates of the parameters have increased considerably. which of the following statements best describes a plausible reason for this situation.
(a) the variable 24 is likely to be an irrelevant variable.
(b) the variable x4 is likely to be a relevant omitted variable.
(c) the original model (the one without x4) was most likely misspecified.
(d) the correlations between x4 and the other independent variables are expected to be very low.
Answers: 2
Mathematics, 21.06.2019 16:30, tamya12234
If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?
Answers: 3
Mathematics, 21.06.2019 21:10, sierravick123owr441
Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
Answers: 3
Suppose you estimated the model y = b1 + b2x2 + b3x3 +e and discover that all the pa- rameter estima...
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