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PDATRighfar Web Client knowledge Central Application Sign Cas Medicare Dual SICUE HSR Core Doc Claim Research ctice Wk 3 Exer
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Answer #1

(a) z = (x - µ)/σ = (120 - 140)/25 = -0.8 = 21.19%

(b) z = (x - µ)/σ = (180 - 140)/25 = 1.6 = 94.52%

(c) x = 1.645*25 + 140 = 181.121

(d) x = 2.33*25 + 140 = 198.159

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