Incubated time for black chicks is distributed with a mean of 21days and standard deviation of 1 day.using what is given, If 1000 eggs are being incubated how many chicks do we expect to hatch
a) in 19-23 days, in 20 to 22 dayd
b) in 21 days or fewer
d) in 18 to 24 days assuming all eggs hatched.
This is what is given:u-3(mean)=2.35%
and u-mean, u, u+ mean =68%
and u-2(mean, u-mean, u, u-mean, u+2(mean)=95%
u-3(mean), u-2(mean), u-mean, u, u+mean, u+2(mean), u+3(mean)=99.7%
The solution file is attached.
= 21, = 1
z = (x - )/
(a) z = (19 - 21)/1 = -2 and z = (23 - 21)/1 = 2
Number of chicks ...
The expert examines the probability distribution and mean determinations. Neat, step-by-step solution is provided.