Z score math | Mathematics homework help

 CJ 301

Assignment #5

Z SCORE

–Please acceptance each of the forthcoming questions. Also, INTERPRET your acceptances.

You must use the exhortation for this week conjuncture agoing on this assignment

– Z reckoning module – underneathneath the Learning Modules. (Also, use the Z reckoning consideration).

 *20 points total

1. A narrate function of corrections has a cunning whereby it accepts as correctional officers barely those who reckoning in the top 5 % of a qualifying exam. (4 points)

The balance of this experiment is 80.

Standard rupture is 10.

Would a idiosyncratic after a while a raw reckoning of 95 be true?

         (Calculate a Z reckoning: reckoning – balance/st.dev.=   )

1. Given a usual division of raw reckonings after a while a balance of 60 and a rule rupture of 10, what dispensation of cases fall:

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

    

    

    

    

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

    

    

    

    

1. Find the z-reckoning corresponding to a raw reckoning of 90 from a usual division after a while balance 60 and rule rupture 8. (2 points)

1. For a usual division where the balance is 50 and the rule rupture is 8, what is the area :

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

   

   

   

  5. Assume that the division of a seed-plot inlet exam is usual after a while a balance of 500 and a rule rupture of 100. For each reckoning under, find the equipollent Z reckoning, the percentage of the area overhead the reckoning, and the percentage of the area under the reckoning. (3 + 3 points)

   

  Score                            Z reckoning                    % Area Above         % Area Below

   

  a) 375

   

   

  b) 437