24/7 Customer Service 1-866-236-8417 1-866-236-8417
|

Reply
Results 1 to 3 of 3
  1. #1
    Prime Nip PharmD The Prime Nip's Avatar
    Join Date: Aug 2007
    Age: 31
    Stats: 5'3", 135 lbs
    Posts: 7,046
    BodyPoints: 7357
    Rep Power: 12493
    The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000) The Prime Nip is a splendid one to behold. (+10000)
    The Prime Nip is offline

    Statistics Problems (Normal Distribution) (Reps)

    I know I have to use the equation "Z = x - mean/standard deviation" and then look up the AUC in a table for all of these questions, but all these problems are different. And if anyone knows of any good statistics websites, please link to it!

    The brain weights of a certain population of adult Swedish males follow approximately a normal distribution with mean 1,400 g and standard deviation 100g. What percentage of the brain weights are:

    a) 1325 and 1500g?
    b) 1325g or more?
    c) 1500g or less?
    d) between 1475 and 1600g?
    ***Fulfilling My Destiny Crew***
    ***Kaizen Crew***
    ***Audiobook Crew***
    ***Alexander The Great Crew***
    ***Bill Burr Crew***
    Reply With Quote

  2. #2
    Banned ddh69's Avatar
    Join Date: Apr 2006
    Location: Wisconsin, United States
    Age: 29
    Stats: 5'10", 185 lbs
    Posts: 2,923
    BodyPoints: 3220
    Rep Power: 0
    ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250) ddh69 has a spectacular aura about. (+250)
    ddh69 is offline
    So basically what im getting from this post is that you are telling us that you are coming out of the closet?
    Reply With Quote

  3. #3
    Registered User sharpshooterz98's Avatar
    Join Date: Jun 2007
    Location: Connecticut, United States
    Age: 28
    Stats: 5'11", 225 lbs
    Posts: 6,048
    BodyPoints: 12023
    Rep Power: 6407
    sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000) sharpshooterz98 is a name known to all. (+5000)
    sharpshooterz98 is offline
    Originally Posted by The Prime Nip View Post
    I know I have to use the equation "Z = x - mean/standard deviation" and then look up the AUC in a table for all of these questions, but all these problems are different. And if anyone knows of any good statistics websites, please link to it!

    The brain weights of a certain population of adult Swedish males follow approximately a normal distribution with mean 1,400 g and standard deviation 100g. What percentage of the brain weights are:

    a) 1325 and 1500g?
    b) 1325g or more?
    c) 1500g or less?
    d) between 1475 and 1600g?
    For example: (1400 - 1325) / 100 = .75 std deviations from the mean. Find the Z statistic/value for that ****. In this case .7734 (its a left tailed test)

    The (1400 - 1500) / 100 = 1 std deviations = 0.1587 (right tailed). Subtract that **** and you get....(.7734 - .1587) = .6147

    Just thing logically and use this website http://www.tutor-homework.com/statis...cs_tables.html

    Note: I am fairly buzze dand I accept no responsibility for the correctness of your answers
    Nothing can stop the man with the right mental attitude from achieving his goal; nothing on earth can help the man with the wrong mental attitude.

    "The first lesson of economics is scarcity: There is never enough of anything to satisfy all those who want it. The first lesson of politics is to disregard the first lesson of economics." -- Thomas Sowell

    RIP Hunter
    Reply With Quote

Posting Permissions

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