问一道统计学问题(英文)?急
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问一道统计学问题(英文)?急
Manuel Banales,Marketing Director of Plano Power Plants,Inc.'s Electrical Division,is directing a study to identify and assess the relative importance of product features.Manuel directs his staff to design a survey questionnaire for distribution to all of Plano's 954 customers.For this study,the set of 954 customers is _____________ .
a.the population
b.a parameter
c.a statistic
d.the frame
e.a sample
Manuel Banales,Marketing Director of Plano Power Plants,Inc.'s Electrical Division,is directing a study to identify and assess the relative importance of product features.Manuel directs his staff to design a survey questionnaire for distribution to all of Plano's 954 customers.For this study,the set of 954 customers is _____________ .
a.the population
b.a parameter
c.a statistic
d.the frame
e.a sample
a a
再问: 解释下,亲
再答: 全部样本的集合包含的样本量就叫population
再问: 还有一道: Which of the following operations is meaningful for processing ordinal data, but is meaningless for processing nominal data? Select one:a. Divisionb. B.Additionc. C.Multiplicationd. D.Countinge. E.Ranking
再答: statistic一个统计,最简单的比如说mean就是一个统计或者variation也可以叫做一个统计 parameter一个参数,比如说f=f(a,b,c)这里f是statistic,a,b,c是参数 frame我没在统计中用到过 sample样本。 ranking对于nominal 数据无意义,因为各个observation之间并无大小之分。
再问: 我觉得是e,对吗?因为两个数字如果是排列的话就没有比较的意义,对吗?如果是这样的话: A consumer has been asked to rank five cars based upon their desirability. This level of measurement is ___________ .那应该是interval level 对把?因为location of origin没有意义
再答: ranking是序列中位置。如果对相应变量,排序无意义,自然无法做rank,所以你选e是对的。
再问: 你有email地址吗?能联系吗? A consumer has been asked to rank five cars based upon their desirability. This level of measurement is ___________ .那应该是interval level 对把?因为location of origin没有意义
再答: 这不就是典型的ranking吗?我没看懂你的意思。做survey的时候,按照1,2,3,4,5给分的话,这个分肯定是有意义的。
再问: 你有email地址吗?我想继续讨论,但快没分了貌似...追问一次10的财富值,能告诉我email吗?。你说“我认为做survey的时候,按照1,2,3,4,5给分的话,我觉得两个分比较的话有意义”,但是这个的问题的起点不是0,而是1,0当作不渴望,而1当作少少渴望。如果有完全不渴望的---location of origin 为零,那么是ratio level ,如果无零,为interval level . 我认为这么解释吧?不然ratio和interval level应该如何区分?
再答: 我没听说过ratio level,当然我主业不是做survey。但是我要是设计一个survey的话,肯定给出的答案是完备的啊?我不觉得在survey给出的选项外还会有其他可能性。 你说的要填interval level的问题是填空题吗?我觉得那里应该填“不连续的”。discrete 《或者stratify,层?这些还是查书可靠》 by the way, 追问要分吗?you can send your email to 71959948x@sina.com. But I am not gurantee I can or I have enough time to answer.
再问: 解释下,亲
再答: 全部样本的集合包含的样本量就叫population
再问: 还有一道: Which of the following operations is meaningful for processing ordinal data, but is meaningless for processing nominal data? Select one:a. Divisionb. B.Additionc. C.Multiplicationd. D.Countinge. E.Ranking
再答: statistic一个统计,最简单的比如说mean就是一个统计或者variation也可以叫做一个统计 parameter一个参数,比如说f=f(a,b,c)这里f是statistic,a,b,c是参数 frame我没在统计中用到过 sample样本。 ranking对于nominal 数据无意义,因为各个observation之间并无大小之分。
再问: 我觉得是e,对吗?因为两个数字如果是排列的话就没有比较的意义,对吗?如果是这样的话: A consumer has been asked to rank five cars based upon their desirability. This level of measurement is ___________ .那应该是interval level 对把?因为location of origin没有意义
再答: ranking是序列中位置。如果对相应变量,排序无意义,自然无法做rank,所以你选e是对的。
再问: 你有email地址吗?能联系吗? A consumer has been asked to rank five cars based upon their desirability. This level of measurement is ___________ .那应该是interval level 对把?因为location of origin没有意义
再答: 这不就是典型的ranking吗?我没看懂你的意思。做survey的时候,按照1,2,3,4,5给分的话,这个分肯定是有意义的。
再问: 你有email地址吗?我想继续讨论,但快没分了貌似...追问一次10的财富值,能告诉我email吗?。你说“我认为做survey的时候,按照1,2,3,4,5给分的话,我觉得两个分比较的话有意义”,但是这个的问题的起点不是0,而是1,0当作不渴望,而1当作少少渴望。如果有完全不渴望的---location of origin 为零,那么是ratio level ,如果无零,为interval level . 我认为这么解释吧?不然ratio和interval level应该如何区分?
再答: 我没听说过ratio level,当然我主业不是做survey。但是我要是设计一个survey的话,肯定给出的答案是完备的啊?我不觉得在survey给出的选项外还会有其他可能性。 你说的要填interval level的问题是填空题吗?我觉得那里应该填“不连续的”。discrete 《或者stratify,层?这些还是查书可靠》 by the way, 追问要分吗?you can send your email to 71959948x@sina.com. But I am not gurantee I can or I have enough time to answer.