Question

pls answer question a,b,c

A livestock company reports that the mean weight of a group of young steers is 1110 pounds with a standard deviation of 61 pounds. Based on the model N(1110,61) for the weights of steers, what percent of steers weigh a) over 1150 pounds? b) under 900 pounds? c) between 950 and 1000 pounds? a) 65.6 % of steers have weights above 1150 pounds. (Round to one decimal place as needed.)

Answer 1

W= Jllo pounds 6= 61 pounds (a) for P(x) 1150) PC xJITS0) = |- P(x5 1956) =1-P( 23. 1150- 1110 19 - 1-P (254) = 1-P(Z = 0.6557) - 1-0.7422 -0.2578 je 95.78.7. Steers n 25.8% (6) 0111-006 52)d = 60065x)d 19 - PC - 3.4426) = 0.0003 ie 0.3.11 sturs () PC 950<x<1000) 950-110 - < 24 000 4110 61 GI e P(-2.622 <<< -1.803) 0.036 -0.004 0.032 je 321/4 stwu.