topic Re: How to prove the siginicance difference level in this data? in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161373#M8400 <HTML><HEAD></HEAD><BODY><P>You don't need to prove the data is non-parametric.</P><P>Non-parameter method is suited for any distribution data.</P><P>But if your data comply with bi-variable normal distribution then use proc ttest which has more power than non-parameter method.</P></BODY></HTML> Sat, 08 Nov 2014 09:32:13 GMT Ksharp 2014-11-08T09:32:13Z How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161368#M8395 <HTML><HEAD></HEAD><BODY><P style="margin: 0 0 1em; font-size: 15px; color: #333333; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: rgba(252, 251, 248, 0.901961);">I have collected a set of data of 52 weeks of actual output and demand.</P><P style="margin: 0 0 1em; font-size: 15px; color: #333333; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: rgba(252, 251, 248, 0.901961);">Actual 1100 1300 1400 1500 1600 1100 1200 1600 2100 1300 1600 1300 1600 2200 2300 1700 1800 800 1400 900 2100 1400 1800 1900 1000 1800 1700 2100 800 1100 900 1600 1700 1400 1100 1200 1700 900 700 900 1300 700 1500 700 1300 1100 1700 1600 1800 2000 1500 2100</P><P style="margin: 0 0 1em; font-size: 15px; color: #333333; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: rgba(252, 251, 248, 0.901961);">Demand 1500 2100 1600 1500 2000 1600 1200 2000 2200 2000 2200 2000 2000 2500 2500 2000 2000 1000 2000 1500 2500 1500 2500 2500 2000 2000 2500 2500 1500 1500 1400 2000 2000 2000 1500 1500 2500 1500 1500 1500 2500 1500 2000 1500 1500 2000 2000 2500 2500 2500 2500 2500</P><P style="margin: 0 0 1em; font-size: 15px; color: #333333; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; background-color: rgba(252, 251, 248, 0.901961);">Now I am having question in what test should I used and i I found out that one is normally distributed and the other one is not.</P></BODY></HTML> Fri, 07 Nov 2014 16:56:40 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161368#M8395 koksiang100 2014-11-07T16:56:40Z Re: How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161369#M8396 <HTML><HEAD></HEAD><BODY><P>You haven't told us the hypothesis you wish to test.</P><P></P><P>We can't tell you how to obtain a significance level if we don't know what the hypothesis you wish to test is</P></BODY></HTML> Fri, 07 Nov 2014 17:32:50 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161369#M8396 PaigeMiller 2014-11-07T17:32:50Z Re: How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161370#M8397 <HTML><HEAD></HEAD><BODY><P>Null hypo : u1 = u2</P><P>Alter hypo : u1 =/ u2</P></BODY></HTML> Fri, 07 Nov 2014 17:51:27 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161370#M8397 koksiang100 2014-11-07T17:51:27Z Re: How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161371#M8398 <HTML><HEAD></HEAD><BODY><P>If you don't want to assume a distribution for the data, you can use a nonparametric test with the WILCOXON option in PROC NPAR1WAY.</P></BODY></HTML> Fri, 07 Nov 2014 20:50:56 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161371#M8398 StatDave 2014-11-07T20:50:56Z Re: How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161372#M8399 <HTML><HEAD></HEAD><BODY><P>how to prove that my data set is non-parametric?</P></BODY></HTML> Sat, 08 Nov 2014 01:42:11 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161372#M8399 koksiang100 2014-11-08T01:42:11Z Re: How to prove the siginicance difference level in this data? https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161373#M8400 <HTML><HEAD></HEAD><BODY><P>You don't need to prove the data is non-parametric.</P><P>Non-parameter method is suited for any distribution data.</P><P>But if your data comply with bi-variable normal distribution then use proc ttest which has more power than non-parameter method.</P></BODY></HTML> Sat, 08 Nov 2014 09:32:13 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-prove-the-siginicance-difference-level-in-this-data/m-p/161373#M8400 Ksharp 2014-11-08T09:32:13Z