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- In many mate-quality recognition systems, females prefer signals that deviate most from the population mean. 對雌性有吸引力的特徵，會(huì )有夸大的演化現象。
- The community abstract mean height isthe accumulative total of each and every population mean height with its cor-responding relative density as a probability weight. -ea-kt 群落的抽象平均高度為各種群的平均高度以相應的相對密度為概率值的累加,抽象平均高度的變化與生物量的變化相符合。
- This article discusses some methods to calculate the estimator minimum variance of the finite population mean which had been given in[1].It also makes s... 對文[1]中給出的求有限總體均值估計量最小方差的幾種方法進(jìn)行了討論,并對其求解方法進(jìn)行了改進(jìn)。
- Managers also encounter situations in which it is useful to test for the equality of more than two population means. 管理人員還會(huì )遇到需要檢驗兩個(gè)以上的總體平均數是否等同的問(wèn)題。
- China's large population meant that the school had to expand to take in many more students. 擴大來(lái)接納更多的學(xué)生。
- The Two-Sample t-Test analysis tools test for equality of the population means that underlie each sample. “雙樣本t-檢驗”分析工具基于每個(gè)樣本檢驗樣本總體平均值是否相等。
- Interval estimation of the population mean 總體平均值的區間估計
- This tool is used to test the null hypothesis that there is no difference between two population means against either one-sided or two-sided alternative hypotheses. 此工具用于檢驗兩個(gè)總體平均值之間不存在差異的空值假設,而不是單方或雙方的其他假設。
- As with the preceding Equal Variances case, you can use this t-Test to determine whether the two samples are likely to have come from distributions with equal population means. 如同上面的“等方差”情況,可以使用此t-檢驗來(lái)確定兩個(gè)樣本是否來(lái)自具有相同總體平均值的分布。
- The z-Test tool can also be used for the case where the null hypothesis is that there is a specific nonzero value for the difference between the two population means. z-檢驗工具還可用于當兩個(gè)總體平均值之間的差異具有特定非零值的空值假設的情況。
- Previous authors have combined tests for pairs and unpaired data so that population means can be compared using a paired study design with incomplete data. 本文的主要目的是對點(diǎn)估計、信賴(lài)區間、和假設檢定的基本性質(zhì)做重點(diǎn)整理，并透過(guò)大量的例子說(shuō)明他們廣泛的應用。
- Do you mean say we are met for a thunder storm? 你肯定我們會(huì )遇到一場(chǎng)雷雨？
- I feel mean for not doing more for my son. 我對沒(méi)為我兒子多做點(diǎn)事而感到慚愧。
- Defeat in this election would mean he was done for. 這場(chǎng)選舉的失敗意味著(zhù)他政治生涯的結束。
- By power we mean the rate of doing work. 我們說(shuō)功率就是指做功的速率。
- This city has a population of more than 1,000,000. 這個(gè)城市人口超過(guò)一百萬(wàn)。
- I have no conception of what you mean. 我想不出你的意思是什么。
- The mean yearly rainfall is20 inches. 每年平均降雨量是二十英寸。
- Do you mean Miss Anne Smith or Miss Mary Smith? 你指的是安·史密斯小姐還是瑪麗·史密斯小姐？
- A desert has no settled population. 沙漠沒(méi)有固定的居民。
