moonlight93
  • moonlight93
Find the z score boundaries that separate a normal distribution as described in each of the following scores? What formula should I use? (can someone show me how to do one of them, I'll do the rest). A. The middle 30% from the 70% in the tails. B. The middle 40% from the 60% in the tails. C. The middle 50% from the 50% in the tails. D. The middle 60% from the 40% in the tails
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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jim_thompson5910
  • jim_thompson5910
The formula involves a lot of complicated calculus. So you're best off using a calculator
jim_thompson5910
  • jim_thompson5910
do you have a TI83 or TI84?
moonlight93
  • moonlight93
TI-84, yes.

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moonlight93
  • moonlight93
TI-84 Plus
jim_thompson5910
  • jim_thompson5910
ok great
jim_thompson5910
  • jim_thompson5910
let's start off with a drawing
jim_thompson5910
  • jim_thompson5910
draw the normal bell curve |dw:1443833806590:dw|
jim_thompson5910
  • jim_thompson5910
`A. The middle 30% from the 70% in the tails. ` so we have 0.7/2 = 0.35 in each tail |dw:1443833837723:dw|
jim_thompson5910
  • jim_thompson5910
to find the z score that corresponds to this point here |dw:1443833908363:dw| we will use the `invNorm` function
jim_thompson5910
  • jim_thompson5910
do you know how to find that function?
anonymous
  • anonymous
welche Art von einer Gleichung ist das? Ich verstehe nicht, wat die quations ist
anonymous
  • anonymous
@RavenDarkwood200 salut Raven , vorbiți germana ?

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