chi-square test C. ANOVA D. correlation test 相关知识点: 试题来源: 解析 A。用于比较两组均值的统计检验是 t 检验(t-test)。卡方检验(chi-square test)用于检验分类变量之间的关系;方差分析(ANOVA)用于比较多个组的均值;相关检验(correlation test)用于检验变量之间的相关性。反馈 收藏 ...
When we want to compare the means of two independent groups, which method is appropriate? A. Paired t-test B. One-way ANOVA C. Two-sample t-test D. Kruskal-Wallis test 相关知识点: 试题来源: 解析 C。两样本 t 检验(Two-sample t-test)用于比较两个独立组的均值。配对 t 检验用于比较...
Calculate Sample Size Needed to Compare 2 Means: 2-Sample Equivalence This calculator is useful when we wish to test whether the means of two groups are equivalent, without concern of which group's mean is larger. Suppose we collect a sample from a group 'A' and a group 'B'; that is...
Compare the two groups of sentences and answer the questions. Sentences (a)and (b)are from the reading passage. a Last year, hundreds of people spent good money on an experience that they knew would include crowds, discomfort and danger. b ... Alan Arnette, who climbed Qomolangma in that...
1Compare the two groups of sentences an d answer the questions. Sentences (a) an d (b)are from the reading passage.个 a Last year, hundreds of people spent goo d money on an experience that they knew woul d include crowds, discomfort an d danger. b ...Alan Arnette, who climbe d ...
Compare the two groups of sentencesand answer the question. Sentences(a)and (b) are from the reading passage.aLast year hundreds of people spentgood money on an experience thatthey knew would include crowds,discomfort and danger.b .. Alan Arnette, who climbedQomolangma in that year andwas go...
1Compare the two groups of sentences and answer the questions.Sentences (a) and (b) are from the reading passage. a.Last year, hundreds of people spent good money on an experience that they knew would include crowds, discomfort and danger. b. ... Alan Arnette, who climbed Qomolangma in...
1 Compare the two groups of sentences and answer the questions. Sen-tences (a)and (b)are from the reading passage.比较两组句子并回答问题。句子(a)和(b)均来自课文。a Last year, hundreds of people spent good money on an experience that theyknew would include crowds, discomfort and danger....
ICompare the two groups of sentences and answer the questions. Sentences (a) and (b)are from② the reading passage.a Last year, hundreds of people spent good money on an experience that they knewwould include③ crowds,discomfort and danger.b .Alan Arnette, who climbed Qomolangma in that ...
Compare the two groups of sentences an d answer the questions.Sentences (a) an d (b) are from the reading passage. a Last year, hundreds of people spent goo d money on an experience that they knew woul d include crowds, discomfort an d danger. b ... Alan Arnette, who climbe d ...