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Use the ALEKS calculator to solve the following problems. (a) Consider a $t$ distribution with 28 degrees of freedom. Compute $P (t ? ? 1.29)$ . Round your answer to at least three decimal places. $P (t ? ? 1.29) =$ (b) Consider a $t$ distribution with 21 degrees of freedom. Find the value of $c$ such that $P (? c < t < c) = 0.90$ . Round your answer to at least three decimal places. $c = ?$

Question

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Use the ALEKS calculator to solve the following problems. (a) Consider a

t

distribution with 28 degrees of freedom. Compute

P (t ? ? 1.29)

. Round your answer to at least three decimal places.

P (t ? ? 1.29) =

(b) Consider a

t

distribution with 21 degrees of freedom. Find the value of

c

such that

P (? c < t < c) = 0.90

. Round your answer to at least three decimal places.

c = ?

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