24小时热门版块排行榜    

查看: 731  |  回复: 2
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

jieer567

新虫 (初入文坛)

[求助] Student-t and F tests是什么意思,什么分析方法

有一审稿意见是:A reported method should be used for the determination of morin in real sample for comparison with this electrochemical method. And for the comparison of the proposed method with the already published methods Student-t and F tests should be used. The obtained results should be reported with their explanations.请问这是什么意思啊,重点是 Student-t and F tests是什么意思,什么分析方法,请教一下大家
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   关注TA 给TA发消息 送TA红花 TA的回帖

szysky

金虫 (小有名气)

【答案】应助回帖


感谢参与,应助指数 +1
jieer567: 金币+1, 有帮助, 嗯 2013-07-03 20:28:37
t检验和f检验 有公式 可以算
3楼2013-06-25 10:37:17
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 3 个回答

skywolves

金虫 (正式写手)

【答案】应助回帖

★ ★
感谢参与,应助指数 +1
jieer567: 金币+2, 有帮助, 还好 2013-07-03 20:28:22
没做过,以下供参考:
The t-test is used to determine whether the difference between two means is significant. The null hypothesis tested in all four types of t-test is that “the difference between two population means is zero”. When the alternative hypothesis is “the difference is not equal to zero”, the two-tailed probability should be compared against the given significance level α (usually 0.05). If the calculated probability is greater than α, then the null hypothesis cannot be rejected. Otherwise, we can conclude that the two means are significantly different. In this case, the confidence interval for the difference will not enclose 0. When the alternative hypothesis is a difference in one direction (i.e. one mean is greater or less than the other), then the one-tailed probability is compared against α.

The F-Test is used to compare variances or standard deviations of two samples. The null hypothesis tested is “the two populations have equal variances”. Columns selected for this test need not be equal in size. Output displays the F‑value, degrees of freedom, the right and two-tailed probabilities from the F-distribution and the confidence interval for the specified confidence level.
2楼2013-06-24 16:12:53
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 0856求调剂 +5 zhn03 2026-03-25 6/300 2026-03-25 22:58 by peike
[考研] 312求调剂 +5 上岸吧ZJY 2026-03-22 7/350 2026-03-25 22:20 by 544594351
[考研] 材料求调剂 +4 .m.. 2026-03-25 4/200 2026-03-25 21:30 by peike
[考研] 一志愿河工大 081700 276求调剂 +3 地球绕着太阳转 2026-03-23 3/150 2026-03-25 19:10 by 雾散后相遇lc
[考研] 材料专硕 335 分求调剂 +4 拒绝冷暴力 2026-03-25 4/200 2026-03-25 18:45 by haxia
[考研] 求b区院校调剂 +4 周56 2026-03-24 5/250 2026-03-25 17:12 by yishunmin
[考研] 299求调剂 +7 shxchem 2026-03-20 9/450 2026-03-25 10:41 by lbsjt
[考研] 求调剂 一志愿 本科 北科大 化学 343 +4 13831862839 2026-03-24 5/250 2026-03-25 09:47 by 无际的草原
[考研] 07化学280分求调剂 +7 722865 2026-03-23 7/350 2026-03-25 09:29 by aa331100
[考研] 材料专硕331求调剂 +4 鲜当牛 2026-03-24 4/200 2026-03-24 15:58 by JourneyLucky
[考博] 26申博自荐 +3 whh869393 2026-03-24 3/150 2026-03-24 09:55 by 21018060
[考研] 336求调剂 +4 收到VS 2026-03-20 4/200 2026-03-23 19:02 by macy2011
[考研] 生物学一志愿985,分数349求调剂 +6 zxts12 2026-03-21 9/450 2026-03-23 18:37 by macy2011
[考研] 考研调剂 +3 呼呼?~+123456 2026-03-21 3/150 2026-03-21 20:04 by 无际的草原
[考研] 22408 344分 求调剂 一志愿 华电计算机技术 +4 solanXXX 2026-03-20 4/200 2026-03-20 23:49 by alg094825
[考研] 一志愿武汉理工材料工程专硕调剂 +9 Doleres 2026-03-19 9/450 2026-03-20 22:36 by JourneyLucky
[考研] 求调剂一志愿南京航空航天大学289分 +3 @taotao 2026-03-19 3/150 2026-03-20 21:34 by JourneyLucky
[考研] 求调剂 +3 @taotao 2026-03-20 3/150 2026-03-20 19:35 by JourneyLucky
[考研] 261求B区调剂,科研经历丰富 +3 牛奶很忙 2026-03-20 4/200 2026-03-20 19:34 by JourneyLucky
[考研] 求调剂 +3 eation27 2026-03-20 3/150 2026-03-20 19:32 by JourneyLucky
信息提示
请填处理意见