I know how to solve this problem but when I enter my answer webassign is countin
ID: 3178239 • Letter: I
Question
I know how to solve this problem but when I enter my answer webassign is counting it wrong due to rounding errors. I believe this is happening because I'm not solving this in minitab. So if someone who has access to minitab could solve this for me I'd greatly appreciate that. In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. Do you try to pad an nsurance claim to cover your deductible? About 35% of all U.S. adults will try to pad their insurance claims Suppose that you are the director of an insurance adjustment office. Your office has just received 134 insurance claims to be processed in the next few days. Find the following probabilities. (Round your answers to four decimal places.) (a) half or more of the claims have been padded (b) fewer than 45 of the claims have been padded (c) from 40 to 64 of the claims have been padded (d) more than 80 of the claims have not been padded
Explanation / Answer
here p=0.35
hence mean=np=134*0.35 =46.9
and std deviaiton =(np(!-p))1/2 =5.52
a)hence P(X>=67)=1-P(X<=66)=1-P(Z<(66.5-49.9)/5.52)=1-P(Z<3.5499)=1-0.9998=0.0002
b)P(X<45)=P(Z<-0.4347)=0.3319
c)P(40<=X<=64)=P(-1.3403<Z<3.1876)=0.9993-0.0901 =0.9092
d)P(X<=80) =1.0000
pls reverrt