Question

The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 39 liters, and standard deviation of 3.5 liters. A) What is the probability that daily production is between 31.6 and 37.5 liters? Do not round until you get your your final answer Answers (Round your answer to 4 decimal places) Warning: Do not use the Z Normal Tables they may not be accurate enough since WAMAP may look for more accuracy than comes from the table, Submit Question

Answer 1

(1) Ju= 39, = =3.5 ,2= *-N10,1) P (31.6 < x < 37,5) Z 31.6 Z 3.5 = P(*<37.5) - P(x (31.69 =plz< 37,5*39) - P(Z < 3, , ) = P12<->) - Plz<-7) = NORMS DIST (– ) - NORMS DI STF 74) - Excel frenetin = 0.31687 0.3169) tai