View the step-by-step solution to:

4) A test is administered to students and the resulting scores are normally distributed. The mean of the test is 75 and the standard deviation is 8.

4) A test is administered to students and the resulting scores are normally distributed. The mean of the test is 75 and the standard deviation is 8.

a) Draw the graph for the distribution of these data and label it both in terms of raw scores and z-scores (standard deviation units)


b) Identify the z-score for each of the following raw scores on this distribution:

83 63 93 75 60

c) Identify the percentage of students who scored in the following ranges of raw scores:

.. between 67 and 83 .. between 51 and 99 .. above 75 .. above 83 .. below 67 .. below 91 .. between 59 and 91 .. below 99

d) Identify the appropriate raw score corresponding to each of the following z-scores:

z = 1.5 z = 0 z = -3 z = -.25 z = 2.33 z = -1.75

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question