+ Reply to Thread
Results 1 to 7 of 7

Thread: P value calculation

  1. #1
    Points: 22, Level: 1
    Level completed: 43%, Points required for next Level: 28

    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts

    P value calculation




    I have zero idea what is going on with p values and would like some explanation on how to calculate them if at all possible. Here's an example question:

    Assuming that the following sample arises from a Normal distribution with mean u and standard deviation sigma, where

    sigma = 5.34, and the 12 samples are:

    92.1, 94.6, 100.5, 95, 106.3, 91.4, 92.25, 93, 104, 105.5, 104, 109.1.

    It was believed that the population mean u is 100. You tested the null hypothesis H0 : u = 100 against the two-sided alternative hypothesis H1 : u not equal to 100. What is the p-value?

  2. #2
    Omega Contributor
    Points: 38,374, Level: 100
    Level completed: 0%, Points required for next Level: 0
    hlsmith's Avatar
    Location
    Not Ames, IA
    Posts
    6,998
    Thanks
    398
    Thanked 1,186 Times in 1,147 Posts

    Re: P value calculation

    On the top of this page you will a link to the Normal Table (Standard Normal Table). Perform a Z-score test and look up your answer on such a table.
    Stop cowardice, ban guns!

  3. #3
    Points: 22, Level: 1
    Level completed: 43%, Points required for next Level: 28

    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: P value calculation

    Quote Originally Posted by hlsmith View Post
    On the top of this page you will a link to the Normal Table (Standard Normal Table). Perform a Z-score test and look up your answer on such a table.
    thanks do you know how to do a z score test? i have literally no knowledge on p values or z scores at the mo

  4. #4
    Points: 22, Level: 1
    Level completed: 43%, Points required for next Level: 28

    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: P value calculation

    any help on that question would be appreciated!

  5. #5
    Omega Contributor
    Points: 38,374, Level: 100
    Level completed: 0%, Points required for next Level: 0
    hlsmith's Avatar
    Location
    Not Ames, IA
    Posts
    6,998
    Thanks
    398
    Thanked 1,186 Times in 1,147 Posts

    Re: P value calculation

    Have you performed a search on a one sample z score test yet? If so what are your questions?
    Stop cowardice, ban guns!

  6. #6
    Points: 22, Level: 1
    Level completed: 43%, Points required for next Level: 28

    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: P value calculation

    Quote Originally Posted by hlsmith View Post
    Have you performed a search on a one sample z score test yet? If so what are your questions?
    this is all going above my head, i have less than no idea how to tackle these types of questions, any help would be appreciated

  7. #7
    Omega Contributor
    Points: 38,374, Level: 100
    Level completed: 0%, Points required for next Level: 0
    hlsmith's Avatar
    Location
    Not Ames, IA
    Posts
    6,998
    Thanks
    398
    Thanked 1,186 Times in 1,147 Posts

    Re: P value calculation


    All you have to do is type "one sample z score test" into your internet browser and there will be lots of examples and definitions. Have you done this?

    The formula that will pop-up is: Z = (xbar - mu) / sigma(xbar).


    Insert your numbers and calculate z-score:
    xbar= mean of your numbers
    mu = 100
    and sigma xbar = 5.34

    Next look-up z-score or type it into your internet browser. It doesn't seem like you are applying that much effort, since you just keep repeating yourself. Be specific about what you don't understand.
    Stop cowardice, ban guns!

+ Reply to Thread

           




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