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115年 - 115-2 專技高考_中醫師(一):中醫基礎醫學(二)(包括中醫方劑學、中醫藥物學)#142593(80題)

115年 - 115 專技高考_助產師:助產學(二)(包括優生保健、遺傳諮詢、胚胎發育、不孕症護理、高危險妊娠護理、高危險分娩護理、高危險產後護理)#142592(80題)

115年 - 115-2 專技高考_中醫師(一):中醫基礎醫學(一)(包括中醫醫學史、中醫基礎理論、內經、難經)#142590(80題)

115年 - 115 專技高考_助產師:助產學(一)(包括助產學緒論、生殖系統的解剖與生理、產前護理、分娩期護理、產後護理、新生兒護理)#142589(80題)

115年 - 115 專技高考_助產師:各科護理學(包括內外科、兒科、精神科與社區衛生護理學)#142588(50題)

115年 - 115 專技高考_助產師:基本護理學(包括護理原理、護理技術)與護理行政#142586(50題)

115年 - 115 臺中市政府所屬機關及學校護理人員暨公立幼兒園契約進用護理人員聯合甄選:學校衛生護理學與公共衛生護理學科#142585(80題)

115年 - 115 專技高考_助產師:基礎醫學(包括生理學、病理學、藥理學、微生物學與免疫學)#142584(50題)

115年 - 115 中華郵政股份有限公司_職階人員甄試_專業職(二)內勤/櫃台業務、郵務處理:企業管理大意及洗錢防制法大意#142582(50題)

115年 - 115 中華郵政股份有限公司_職階人員甄試試題:郵政三法大意(含郵政法、郵政儲金匯兌法、簡易人壽保險法)及金融科技知識#142581(60題)

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10. Consider the wage equation $\ln(wagei) = \beta0 + \beta1 educi + ui$, where $ui$ contains unobserved ability $abilityi$ and local labor-market quality Li. Assume $Cov(educi, abilityi) > 0$ and Lidirectly affects wages. A proposed instrument is distance to nearest college, zi. Suppose zi is strongly correlated with Li (e.g. urban areas have smaller distance and higher wages even holding education fixed), and $L_i$ is omitted from the regression. Which statement is most correct?(A) The exclusion restriction may fail because \( z{i} \) can affect \( \ln (wage{i}) \) through \( L{i} \), so \( Cov(z{i},u_{i}) \) may be nonzero.(B) If \( Cov(z{i}, e d u c{i}) \neq 0 \), IV is always consistent regardless of \( L_{i} \).(C) Adding an intercept is sufficient to control for \( L_{i} \)(D) If OLS is biased, IV must be unbiased in finite samples

9. Suppose you estimate a log-level model $\ln(yi) = \beta0 + \beta1 xi + ui, \quad yi > 0,$with $E(ui \mid xi) = 0$. Using the standard approximation for small changes, which interpretation of $\beta_1$ is correct?(A) A one-unit increase in \( x \) changes \( y \) by exactly \( \beta_{1} \) units(B) A one-percent increase in \( x \) changes \( y \) by approximately \( \beta_{1} \) percent(C) A one-unit increase in \( x \) changes \( E(y \mid x) \) by approximately \( 100\beta_{1} \) percent(D) \( \beta_{1} \) is the price elasticity of demand

8. Let a categorical variable $Gi \in \{1,2,3,4\}$ and define dummies $D{ki} = \mathbf{1}\{Gi = k\}$, $k = 1,2,3,4$. Consider the regression with an intercept: $yi = \beta0 + \beta1 D{1i} + \beta2 D{2i} + \beta3 D{3i} + \beta4 D{4i} + ui$. Which statement is correct?(A) The model is identified because the dummies are mutually exclusive(B) The model is not identified because \( \sum{k=1}^{4} D{ki} = 1 \) for all \( i \); drop one dummy or drop the intercept(C) The model is identified if \( n \) is large enough(D) Identification fails only if one group has zero observations試題隨卷繳交接背面4國立臺北大學 115 學年度碩士班一般入學考試試題系(所)組別:經濟學系科 目:統計學第4頁 共4頁☑可 ☐不可使用計算機

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