A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

A random sample of 1000 oranges showed that the mean amount of juice per orange was 7 fluid ounces, with a standard deviation of 1.6 fluid ounces. If the z-score for a particular orange was –1.5, how much juice was produced by this orange? Round approximate values to the nearest tenth of a fluid ounce.

  • This Question is Closed
  1. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    7 -1.5 = 5.5

  2. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    5.5\14 ?

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    7-1.5*1.6=4.6

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well their is a 5.5 and 4.6

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    5.5 is its position

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im looking for a calculator

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The z score is standarised and tells you how many standard deviations away from the mean the orange is.

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i really hate normal distribution

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    its not so normal

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    In a certain normal distribution of scores, the mean is 50 and the standard deviation is 4. Find the z-score corresponding to a score of 55.

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes, it is normal. This orange is 1.5 standard deviations below the mean and the mean is 7 so the orange produces 7-1.5*1.6=4.6 fluid onces.

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well im do this for the first time on the web... i should have done it in a class room with a real teacher

  13. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    i get the 5.5 .... but whats the logic behind *zscore?

  14. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    or is that 7-(1.5*1.6)

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[Z=\frac{X-\mu}{\sigma}\] so it tells you how many standard deviations below the mean a certain value is.

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes, 7-(1.5*1.6)

  17. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    stats class is a little confusing to me becasue the teacher is just throwing formulas at us with no explanation ...

  18. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    50-(4*55)=

  19. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    In a certain normal distribution of scores, the mean is 50 and the standard deviation is 4. Find the z-score corresponding to a score of 55.

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    did i do it right lol

  21. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No, see the formula I posed earlier. It should be (55-50)/4

  22. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what confuses me is the signs for the formula... but i got it

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    this is my first time ever doing this plez excuse me

  24. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ah, ok, sorry. X is the number you're trying to find the Z value for, mu is the mean and sigma is the standard deviation.

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    but i understand it better than what the book would explain... its like 10 pages explain that formula

  26. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Remember, the z score just tells you how many standard deviations away from the mean a value is. So, say I had a mean of 50, and an SD of 2, if I was trying to find the z score of 56, it would be 3 because 56 is 3 standard deviations from the mean.

  27. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.