Page 339 13 A noodle machine in Spumoni’s spaghetti factory makes about 5 percent defective noodles even when properly adjusted. The noodles are then packed in crates containing 1900 noodles each. A crate is examined and found to contain 115 defective noodles. What is the approximate probability of finding at least this many defective noodles if the machine is properly adjusted?

n<- 1900
p<- .05
q<- .95
x<- 115
np <- n * p
npq <- sqrt(n*p*q)
xx<- (x - np)/npq/npq

The approximate probability of finding at least 115 defective noodles is 0.22