問題詳情

【題組】 ⑵公司實際進行分層隨機抽樣,各層的調查樣本數 (ni) 及回收後的樣本平均數 ( 

i ) 及標準差 ( Si ) 如表二所示。請估計公司平均耗損工時數之 95%信賴區間。(15 分)

參考答案

答案:B
難度:困難0.267081
統計:A(107),B(43),C(3),D(1),E(0) #
個人:尚未作答 書單:Pedagogy、objective test

用户評論

【用戶】Paul Shih

【年級】高二上

【評論內容】An objective test is intended to measure an individual's abilities and to be scored without bias or judgment. Sometimes there is confusion that the test itself is not biased, but it is important to remember that the impartiality of the exam is based on the scoring procedures rather than on the questions or on the structure of the test. An objective test is distinct from subjective or projective tests, which are more prone to bias in scoring.

【用戶】Dex Shih

【年級】高三上

【評論內容】考試的目的,不是在求有效標或有信度的考試分數,而是在測驗學生會了沒?

【用戶】羅逸昇

【年級】大一上

【評論內容】為了要達成客觀測驗,我想確認該測驗具有信度及效度應該是正確的