+ Reply to Thread
Results 1 to 7 of 7

Thread: What statistical test should I use to check to ratio?

  1. #1
    Points: 1,123, Level: 18
    Level completed: 23%, Points required for next Level: 77

    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts

    What statistical test should I use to check to ratio?




    I have data for two sets of sample in the form of frequency of three category.Say A,B & C are three category and I have data for sample 1 as
    Freqency of A=200,Frequency of B=300,frequency of C=100.For sample 2 Frequency of A=100,Frequency of B=200 & frequency of C=50.I want to check whether the ratio of A & B for sample 1 is same with the ratio of A & B for sample 2.Is there any test using which I can check my hypothesis?

  2. #2
    Points: 4,663, Level: 43
    Level completed: 57%, Points required for next Level: 87

    Posts
    118
    Thanks
    1
    Thanked 1 Time in 1 Post

    Re: What statistical test should I use to check to ratio?

    Please wait for responses from others too!

    First of all, find out if there is a significant correlation between between Sample 1 and 2 on the category A and later on category B. It measures to some extent that there is some relationship between category A and B.

    Finding out a ratio is a simple arithmetic. Just find out the ratio in sample 1 and and later the ratio in sample 2. Then, compare.

  3. #3
    Points: 1,123, Level: 18
    Level completed: 23%, Points required for next Level: 77

    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: What statistical test should I use to check to ratio?

    Sorry,I did not get your answer.Why do I need to check correlation between two sample on Category A & Category B?

    My Question is if I'm getting ratio A/B for sample 1 is X1=0.5 and for sample 2 X2=0.8 & I want to make a Null hypotheis X1=X2 & Altrenative hypothesis X1 Not equal to X2 then will be my test procedure & test statistic?

  4. #4
    Points: 1,838, Level: 25
    Level completed: 38%, Points required for next Level: 62

    Location
    UK
    Posts
    163
    Thanks
    0
    Thanked 9 Times in 9 Posts

    Re: What statistical test should I use to check to ratio?

    Quote Originally Posted by ch.niladri View Post
    Sorry,I did not get your answer.Why do I need to check correlation between two sample on Category A & Category B?

    My Question is if I'm getting ratio A/B for sample 1 is X1=0.5 and for sample 2 X2=0.8 & I want to make a Null hypotheis X1=X2 & Altrenative hypothesis X1 Not equal to X2 then will be my test procedure & test statistic?
    If I understand correctly you simply want to test for a (significant) difference in two proportions. You can use a t-test to do this.

  5. #5
    Devorador de queso
    Points: 95,754, Level: 100
    Level completed: 0%, Points required for next Level: 0
    Awards:
    Posting AwardCommunity AwardDiscussion EnderFrequent Poster
    Dason's Avatar
    Location
    Tampa, FL
    Posts
    12,932
    Thanks
    307
    Thanked 2,629 Times in 2,245 Posts

    Re: What statistical test should I use to check to ratio?

    Quote Originally Posted by duskstar View Post
    If I understand correctly you simply want to test for a (significant) difference in two proportions. You can use a t-test to do this.
    There are two samples (each with sample size 1). You can't really do any inferential procedures here. The best you do is look at the sample ratios and compare them.

  6. #6
    Points: 1,838, Level: 25
    Level completed: 38%, Points required for next Level: 62

    Location
    UK
    Posts
    163
    Thanks
    0
    Thanked 9 Times in 9 Posts

    Re: What statistical test should I use to check to ratio?

    Quote Originally Posted by Dason View Post
    There are two samples (each with sample size 1). You can't really do any inferential procedures here. The best you do is look at the sample ratios and compare them.

    You're very right, I didn't read the post correctly sorry. If there is only a sample size of 1 it doesnt make sense to compare statistically.

  7. #7
    Points: 1,123, Level: 18
    Level completed: 23%, Points required for next Level: 77

    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: What statistical test should I use to check to ratio?


    Quote Originally Posted by Dason View Post
    There are two samples (each with sample size 1). You can't really do any inferential procedures here. The best you do is look at the sample ratios and compare them.
    No no.Sample size is not one.My sample size is 20

+ Reply to Thread

           




Similar Threads

  1. Replies: 3
    Last Post: 12-19-2010, 10:59 PM
  2. paired t test problem, just check
    By Fa23 in forum Statistics
    Replies: 1
    Last Post: 12-12-2010, 04:58 AM
  3. Following up an F ratio test
    By D Man in forum Statistics
    Replies: 4
    Last Post: 01-03-2010, 01:32 AM
  4. Likelihood Ratio Test
    By Phil_Newman in forum Statistics
    Replies: 1
    Last Post: 03-24-2009, 09:19 AM
  5. Replies: 3
    Last Post: 11-02-2005, 11:51 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts






Advertise on Talk Stats