tag:blogger.com,1999:blog-1819941738533433524.post174885005053594233..comments2024-03-23T14:04:32.621-04:00Comments on my less serious life: the cereal experiment: ranking systemUnknownnoreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1819941738533433524.post-49413097173148499932011-08-16T14:01:44.515-04:002011-08-16T14:01:44.515-04:00Perhaps, given small numbers and problems with out...Perhaps, given small numbers and problems with outliers, you should use Hyunh's (1982, 2000) robust z Statistic (z_r). It can be calculated z_r = (D - Md)/.74(IQR), where D is the variable, Md is the median, and IQR is the inter-quartile range. This makes the same assumption of D (i.e., drawn from a normal distribution), although this does not hold. However, it does add beneficial properties in small numbers and with ordinal data beyond the standard z. <br /><br />Just my $0.02.Brandonnoreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-27279279536204407892011-08-16T13:30:50.412-04:002011-08-16T13:30:50.412-04:00This comment has been removed by the author.Brandonhttps://www.blogger.com/profile/11327852324291598808noreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-69674454804059524212011-08-16T13:01:24.373-04:002011-08-16T13:01:24.373-04:00@Imagine: No, I'm afraid although I liked Gold...@Imagine: No, I'm afraid although I liked Golden Goodness, it has dropped to number 3! The formula just can't ignore Kashi GoLean Original's nutrition - even though GG gets higher marks for taste and texture.Sarahttps://www.blogger.com/profile/16674873544797005345noreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-48858972578341631142011-08-16T12:59:18.192-04:002011-08-16T12:59:18.192-04:00But I thought Kashi Golden Goodness was the front ...But I thought Kashi Golden Goodness was the front runner -- this is why we cannot underestimate the value of qualitative data. ;)Imagine1122https://www.blogger.com/profile/10688748883567642049noreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-31330133269808390062011-08-16T11:00:17.268-04:002011-08-16T11:00:17.268-04:00LOVE this! :)LOVE this! :)Amy B. in Charlestonhttps://www.blogger.com/profile/10405477817487618599noreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-32804324241941995592011-08-16T09:50:44.474-04:002011-08-16T09:50:44.474-04:00@Matt. This thought crossed my mind, but I haven&#...@Matt. This thought crossed my mind, but I haven't dealt with outliers yet at all. Something to consider, for sure, especially with the small number of cereals, as you point out. Any ideas? ;) I imagine this formula will get tweaked a bit at the end of the experiment. I also want to play around with the weights before I make my final conclusion.Sarahttps://www.blogger.com/profile/16674873544797005345noreply@blogger.comtag:blogger.com,1999:blog-1819941738533433524.post-34628015769110263352011-08-16T09:34:41.838-04:002011-08-16T09:34:41.838-04:00Fun!
What is your method of identifying outliers?...Fun!<br /><br />What is your method of identifying outliers? Using a standard deviation is good, however with a small sample size I wonder if you need to remove outliers in order to obtain a better distribution.Matthttps://www.blogger.com/profile/10517222859957116117noreply@blogger.com