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104年 - 104 淡江大學 轉學考 統計與機率#55460
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題組內容
4.某房仲公司欲分析新北市影響豪宅房價的因素,過去10筆成交記錄的豪宅坪數(變數X單 位:坪)和成交價(變數F單位:百萬元)如下
(1)Find the best linear regression model.
其他申論題
(1) Find the maximum likelihood estimator ofσ.
#208666
(2) Find the unbiased estimator of σ and verify it is unbiased.
#208667
(1) Are the types of drug independent with the curing results? <10%>
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(2) Do these results demonstrate a significantly higher cure rate with drug B than drug A? Test with a=0.05.(是否B藥治癒率顯著高於A藥)<10%>
#208669
(2)檢定豪宅坪數與成交價是否呈正線性相關(a=0.05)(需設虛無和對立假設)
#208671
(3)Set up ANOVA table and do a F test.
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(4)Find the coefficient of determination.
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(5)在95%信心水準下,豪宅坪數為75坪時‘平均成交價會是多少?
#208674
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2. 人的天性大致是差不多的,但是在習慣方面卻各有不同。習慣是慢慢養成的,在幼小的時候最容易養成,一旦養成之後,要想改變過來卻是很不容易的。
#208676