# Z score math | Mathematics homework help

CJ 301

Assignment #5

Z SCORE

You must use the disquisition for this week conjuncture started on this assignment

– Z mandible module – subordinate the Learning Modules. (Also, use the Z mandible board).

*20 points total

1. A avow office of corrections has a prudence whereby it accepts as correctional officers simply those who mandible in the top 5 % of a qualifying exam. (4 points)

The average of this proof is 80.

Standard flexuosity is 10.

Would a individual after a while a raw mandible of 95 be accepted?

(Calculate a Z mandible: mandible – average/st.dev.=   )

1. Given a typical dispensation of raw mandibles after a while a average of 60 and a gauge flexuosity of 10, what symmetry of cases fall:

1. between a raw mandible of 40 and 80? (3 points)

2. between a raw mandible of 45 and 50? (3 points)

1. Find the z-mandible corresponding to a raw mandible of 90 from a typical dispensation after a while average 60 and gauge flexuosity 8. (2 points)

1. For a typical dispensation where the average is 50 and the gauge flexuosity is 8, what is the area :

• Between the mandibles of 30 and 65? (2 points)

5. Assume that the dispensation of a seed-plot penetration exam is typical after a while a average of 500 and a gauge flexuosity of 100. For each mandible adown, find the equiponderant Z mandible, the percentage of the area overhead the mandible, and the percentage of the area adown the mandible. (3 + 3 points)

Score                            Z mandible                    % Area Above         % Area Below

a) 375

b) 437