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

63. Choose the INCORRECT description regarding the hearing system of human. (A) The cochlea can distinguish volume because the basilar membrane is not uniform along its length. (B) The ear conveys information to the brain about two important sound variables that are volume and pitch. (C) Three bones of the middle ear transmit the vibrations to the oval window. (D) The cochlea has two large canals, an upper vestibular canal and a lower tympanic canal, which separated by a smaller cochlear duct. (E) The hearing system of human is a mechanoreceptor system.

18. 有一交流系統其電壓為 sin100tV,已知負載的消耗平均功率為 3kW, 功率因數為 0.6 滯後,今想提高此系統功率因數至 0.8,則需並聯何種元件與其功率值為多少? [台中捷運111] (A) 電感,1500W (B) 電感,1550VAR (C) 電容,1550VAR (D) 電容,1750VAR

19. 在 RL 交流電路中,若將 5 歐姆的電阻器與 12 歐姆的電感器並聯時,其功率因數為多少? [自來水 110] (A) 0.6 (B)0.707 (C)0.8 (D)0.92

複選題20. 如右圖所示電路,請問下列何者正確? [自來水 110] (A)Z = 6 + j8Ω (B)P.F. = 0.6 滯後 (C)P = 800W (D)S = 1000VA

28.關於Bowen認為諮商心理師在評估會談的角色,下列何者正確? (A)客觀而中立 (B)情緒共鳴而融合 (C)真實且一致 (D)感性與接納

38. 某企業建置長時間對話的客服機器人,發現當對話回合數持續增加、上下文變得很長時,即使對話內容仍未超過模型可支援的上下文長度上限,模型仍常「忘記」或答錯先前提及的內容,回覆準確度明顯下降。下列關於此現象的敘述,何者最正確? (A)上下文越長,模型擷取與利用關鍵資訊的能力可能下降,因此容易忽略先前的核心內容; (B)上下文越長,模型會自動建立索引並優先檢索較早的對話內容,因而無法引用先前資訊; (C)上下文越長,模型在推論時會逐漸改變其原有的模型參數設定,因而導致記憶混亂; (D)只要對話內容未超過模型可支援的上下文長度,就不會出現遺漏先前資訊的情形