金程問(wèn)答書(shū)P408-Module 6-Practice Problems-(1) Question 11, 根據(jù)教材P405 Summary總結(jié)的倒數(shù)第4小點(diǎn),應(yīng)該選B,但是根據(jù)教材P361-倒數(shù)第4段描述level of significance 定義的部分,應(yīng)該選C?B和C的區(qū)別是?(2) Question 12, the power of a hypothesis test=the probability of not making a Type II error,這個(gè)知識(shí)點(diǎn)在教材第幾頁(yè)上?
書(shū)P408-Module 6-Practice Problems-(1)第3題的B選項(xiàng),錯(cuò)在哪兒?(2)第4題的A選項(xiàng),C選項(xiàng),錯(cuò)在哪兒?(3)第5題,C選項(xiàng),如果是雙尾檢驗(yàn)的話,there is a 2.5% rejection region in one tail of the distribution.
書(shū)(2022-L1V1)P405-Exhibit 29-Panel B表格中的數(shù)據(jù)是怎么得出的?
書(shū)(2022-L1V1)P403-Example 17-Solution 第一行,我用excel函數(shù)T.INV(0.025,179)=1.97331, 不是答案里寫(xiě)的1.97338?
Module 6-P399
書(shū)(2022-L1V1)-P395-Example 13-Solution to 2中,為什么原假設(shè)是Before方差平方“小于等于”After方差平方,而不是“大于等于”?
Module 6-Example 12-答疑題目,請(qǐng)見(jiàn)截圖
書(shū)(2022-L1V1-P387)-Example 11-Exhibit 18中的standard deviation difference = 0.3622, 這個(gè)數(shù)字怎么得出的?
1.書(shū)(2022-L1V1)P378-Example 7-Solution to 1-Step 4中所寫(xiě)的reject the null if the calculated t-statistic is less than -2.069 and greater than +2.069. 這句話中,less than -2.069 and greater than +2.069是兩側(cè)的拒絕域,當(dāng)中區(qū)間(-2.069,+2.069)是非拒絕域?這與Example 5 Solution中所說(shuō)的Rejection of the null hypothesis requires that the p-value be less than the level of significance.不是同一個(gè)知識(shí)點(diǎn)? 2.Solution to 2所寫(xiě)的The 95% confidence interval is X拔± Critical value (s/根號(hào)下n ),如截圖1所示,這個(gè)公式在書(shū)上第幾頁(yè)上有? 3.Solution to 2所寫(xiě)的The hypothesized value of 1.1% is within the bounds of the 95% confidence interval,指的是1.1%落在{? 0.0204, 3.0204 }這個(gè)區(qū)間內(nèi)?
Module 6-書(shū)P373最后一段陳述的If the calculated t-distributed test statistic is outside the bounds of the critical values based on the level of significance, we will reject the null hypothesis in favor of the alternative. 但是書(shū)P370-Example 5-Solution所陳述的是相反的?Rejection of the null hypothesis requires that the p-value be less than the level of significance. 另外,書(shū)P373最后一段所陳述的outside the bounds of the critical values指的是大于還是小于?
Module 5-教材P331-Example 10-Solution to 1中的計(jì)算式(截圖),請(qǐng)問(wèn)用德州儀器計(jì)算器,怎么按鍵?按鍵順序是?
你好,這題5年后開(kāi)始永續(xù)年金,為什么算出來(lái)的是pv4, 而不是pv5。
經(jīng)典題講解里沒(méi)有這幾道題,麻煩老師給我講一下,謝謝
經(jīng)典題講解里沒(méi)有這幾道題,麻煩老師給我講一下,謝謝
這組樣本五個(gè)數(shù),為什么計(jì)算器可以算出總體標(biāo)準(zhǔn)差呢
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