promotion image of download ymail app
Promoted
Anonymous
Anonymous asked in Science & MathematicsMathematics · 2 months ago

Statistics I got that .4890 is closest to the table value .4880 which has a Z score of .03?

Update:

Let  

be a continuous random variable that follows a normal distribution with a mean of standard deviation is 28 

Update 2:

Sorry Guys can't delete but figured out the answer mean is 375 and Standard deviation is 28

Attachment image

3 Answers

Relevance
  • Alan
    Lv 7
    2 months ago
    Favorite Answer

    see image, Yahoo Hid it 

    Attachment image
  • 2 months ago

    My table has a table value of 0.4890; z = 2.29

    0.5000 - 0.4890 = 0.1100, closest to 0.0120 which has z = 0.03. Is that is?

    • Commenter avatarLogin to reply the answers
  • 2 months ago

    Your teacher is a moron.  This question does not contain enough information to have a unique answer.  If we SUPPOSE that 375 is the mean value in this example (which is not stated), then we are looking for a Z score of 2.29 (not 0.03).  No way in the world to find "x" without knowing the standard deviation of the distribution.

    Or maybe you didn't post the introductory paragraph of the question...?

Still have questions? Get your answers by asking now.