Question
Asked Oct 16, 2019

Please  also show TI 84 calculator steps and why we use invnorm

the rande uaniaue is nealy diuhabu ted
is nema
Mtan
69 and steaderd davitan r-IS.
God
dcviatian
Betrtco hat to value f wald 5e f the area
witn
under the nud urvc tall?
I a larac alcoanhias fim
f
a Sup
f loo
alleo
help_outline

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the rande uaniaue is nealy diuhabu ted is nema Mtan 69 and steaderd davitan r-IS. God dcviatian Betrtco hat to value f wald 5e f the area witn under the nud urvc tall? I a larac alcoanhias fim f a Sup f loo alleo

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Step 1

Introduction:

Consider X as the random variable of interest.

Here, it is necessary to find two values of X, between which, 95% of the observations lie.

This means that outside the interval formed by these two values, the remaining 5% (= 100% – 95%) of the observations will lie.

Now, this 5% is again divided by 2, so that 2.5% of the observations lie above the higher of the two values, and the remaining 2.5% of the observations lie below the lower value.

Denote the lower value as x1 and the higher value as x2.

These two values should be such that:

P (x1 < X < x2) = 0.95

P (X < x2) – P (X...

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