e*******6
发帖数: 13 | 1 统计课的实验,求大神指点
很大一个罐子，里面有2种糖，3个人一组只给2分钟数，所以只能sample.最后问3个问
题。数得越准分越高：
1. Type A糖有几颗
2. Type B糖有几颗
3. Type B糖的比例
最给要给出95% confidence interval
这个实验咋整比较好 | g******2
发帖数: 234 | 2 1. take out a sample of the candies. Count # of A (denote as x) and # of B (
denote as y). Use a marker to mark them all
2. Put the candies back into the jar and shake the jar well (to randomize)
3. Take a sample of the candies. Calculate the ratio of the marked candies.
x/ratioA=estimate of total # of A, y/ratioB=estimate of total # of B, B%=
estimate of total # of B/ estimate of total # of candies
repeat 2 and 3 as many time as you can.
then use the imperial distribution to obtain the 95% CI.
This is just the starting point. Check some literature to find better ways. |
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