Z score math | Mathematics homework help


 CJ 301


Assignment #5






–Please tally each of the forthcoming questions. Also, INTERPRET your tallys.


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




YOUR NAME: _______________________________________________






  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