阿摩線上測驗 登入

最新科目

最新試卷

最新試題

40. Which of the following statement about coefficient of determination $R^2$ is incorrect? (A) As the number of explanatory variables increases, \( R^2 \) may increase. (B) It provides the percentage of explained variance in the response variable using the regression model. (C) Its value must fall in 0 and 1. (D) The correlation of coefficient must equal to \( R^2 \). (E) When \( R^2 = 1 \), the response variable has an exact linear relationship with the explanatory variable in the simple regression model.

39. Which of the following statement is when the one-way ANOVA provides relatively more evidence that $H_0: \mu_1 = \mu_2 = \cdots = \mu_g$ is rejected? (A) The smaller the between-groups variation. (B) The smaller the within-groups variation. (C) The larger the between-groups variation. (D) The larger the within-group variation. (E) None of the above.

38. Suppose that a 99% confidence interval for the difference $p_1 - p_2$ between the proportions of men and women in Taiwan who are alcoholics equals (0.02, 0.09). (A) We are \( 99\% \) confident that the proportion of alcoholics is between 0.02 and 0.09. (B) We are \( 99\% \) confident that the proportion of men in Taiwan who are alcoholics is between 0.02 and 0.09 larger than the proportion of women in Taiwan who are. (C) We can conclude that the population proportions may be equal. (D) We are \( 99\% \) confident that a minority of Taiwan residents are alcoholics. (E) Since the confidence interval does not contain 0, it is impossible that \( p_1 = p_2 \)

最新申論題

最新課程

最新主題筆記

最新討論

30. In the emission spectrum of mercury, there is a spectral line at 404.66 nm produced by mercury atoms undergoing electronic transitions from n=7 to n=6, where n is the principal quantum number. Since the upper level is threefold degenerate, in an external magnetic field the symmetry is broken and the degeneracy disappears, and thus the spectral line splits into three, as shown in the figure. This spectroscopic phenomenon is ascribed to (A) Meissner effect (B) Stark effect (C) Raman effect (D) Hall effect (E) Zeeman effect. 。

31. With sufficient energy, it’s possible to eject an electron from an inner atomic orbital. A higher-energy electron will then drop into the unoccupied state, emitting a photon with energy equal to the difference between the two levels. For inner-shell electrons, photon energies are in the keV range, putting them in the X-ray region of the spectrum. These characteristic X-rays are labeled with the letter indicating the shell to which the electron drops, followed by a Greek letter indicating the higher level from which it drops; thus ?? designates a transition from the L shell to the K shell. Molybdenum’s X-ray spectrum has its ?? peak at17.4 keV. Note that Plank’s constant is 6.626 × 10−34 m2 ∙ kg/s, speed of light is 3 × 108 m/s, and one electron charge is 1.6 × 10−19 C. The corresponding X-ray wavelength is closest to (A) 10 pm (B) 30 pm (C) 70 pm (D) 150 pm (E) 200 pm.

3 依據沙奇曼(Suchman)對病人在疾病不同階段的行為反應,下列敘述何者正確? (A)感覺徵兆期,會隱瞞和他較親密的人轉而尋求他人的協助 (B)假設生病角色期,會尋求專業醫療照護並且與醫師磋商治療過程 (C)接觸醫療照顧期,會希望對自己疾病的徵兆以及預後能多些瞭解 (D)病人角色期,可能接受或拒絕醫師的建議,開始學習放棄生病的角色

41. 某製造業廠區計劃導入 AI 影像分析系統,希望統計各產線員工穿戴安全帽與反光背心的整體遵從率,作為職業安全管理改善的參考依據。為兼顧職業安全管理與員工隱私保護,系統在分析及產出報表時不得識別或記錄任何特定員工的身分資訊。下列何種 AI 技術最適合此需求? (A)採用物件偵測(Object Detection)辨識影像中的安全帽與反光背心,並統計各產線的整體穿戴遵從率; (B)採用人臉辨識(Face Recognition)辨識未穿戴防護具的人員,再彙整各產線的穿戴遵從率; (C)採用步態分析(Gait Analysis)辨識員工身分,再分析各產線的穿戴情形,以利後續改善安全管理; (D)採用行為分析(Behavior Analytics)結合個人歷史紀錄,預測員工未來未穿戴防護具的風險,作為改善依據

42. 某客服系統開發團隊希望聊天機器人的回覆風格更貼近人類偏好,因此在模型訓練後期導入人類回饋強化學習(Reinforcement Learning from Human Feedback, RLHF)技術。關於 RLHF 核心作法,下列敘述何者最正確? (A)蒐集人類對不同模型回覆的偏好評比,建立獎勵模型作為模型優化的依據; (B)蒐集更大量的公開網路文字重新進行預訓練,以提升模型回答的專業度; (C)調整系統提示(System Prompt),引導模型採用指定的回覆風格; (D)蒐集高品質問答範例,直接進行監督式微調(Supervised Fine-Tuning, SFT)