Results 1 to 2 of 2

Math Help - Standard deviations..

  1. #1
    Newbie
    Joined
    Mar 2010
    From
    u.s.a
    Posts
    3

    Standard deviations..

    If you want to be 97% confident that the true population mean lies within a certain range of numbers, how many standard deviations from the sample mean must the numbers be?

    Im not sure how to solve this.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Junior Member atalay's Avatar
    Joined
    Apr 2010
    Posts
    27
    You should look Z-table.

    The value should be 0,97...
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Difference between Standard Deviations?
    Posted in the Statistics Forum
    Replies: 6
    Last Post: September 12th 2011, 10:56 PM
  2. Standard Deviations
    Posted in the Statistics Forum
    Replies: 1
    Last Post: August 5th 2011, 10:40 AM
  3. Standard deviations
    Posted in the Statistics Forum
    Replies: 3
    Last Post: December 7th 2010, 08:41 PM
  4. Probabilities and Standard Deviations
    Posted in the Statistics Forum
    Replies: 8
    Last Post: June 10th 2009, 09:49 PM
  5. Replies: 5
    Last Post: May 18th 2009, 05:14 AM

Search Tags


/mathhelpforum @mathhelpforum