dylanlott22 dylanlott22
  • 02-05-2020
  • Mathematics
contestada

Find the value of z such that 0.9722 of the area lies between −z and z. Round your answer to two decimal places.

Respuesta :

mysticchacha
mysticchacha mysticchacha
  • 02-05-2020

Answer:

-2.20 < z < 2.20

Step-by-step explanation:

You are saying the entire area = 0.9722

so    1 - 0.9722 = 0.0278

then  we want it to fit in the middle of the normal curve with center 0

so...

0.0278/2 =0.0139  this corresponds to 2.20  on the z-score chart

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