An SRS of 500 high school wenion guised as surrape of it = 25 points in their sevond annmpt at the SAT Mathematics exam. Averne that the change in wore has s Normal diverlibution with standand deviation sigma =54. Yoe can find the critical vilues to three decimal places by using the last rut in uble C. (a) Find a 90% conflource interval for the me

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An SRS of 500 high school wenion guised as surrape of it = 25 points in their sevond annmpt at the SAT Mathematics exam. Averne that the change in wore has s Normal diverlibution with standand deviation

\sigma =54

. Yoe can find the critical vilues to three decimal places by using the last rut in uble C. (a) Find a

90%

conflource interval for the mean change is wone

p

in the pepslatice of all high wheel miner. (Finer your awovers rounded to twe decimal places.) lower bound of crefidence interval: reper bound of coefiness interval: (b) What is the magis of error for SOS

uarr

(Timer your mover nousled to fave docinal place.) margin of mor

_(_())_(_())

creer roubled to three fesimal places.) Tepis as ener

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