Please give me a detailed solution. If you use excel, include it in your solution. For sure I will rate thanks in advanc

[answerhappygod]

Please give me a detailed solution. If you use excel,
include it in your solution. For sure I will rate thanks in
advance!
An insurance company has a portfolio of 12,000 policies. Based
on past data the company
estimates that the probability of a claim on any one policy in a
year is 0.0045. It assumes
no policy will generate more than one claim in a year.
(a) Determine the approximate probability of more than 64 claims
from the portfolio
of 12,000 policies in a year.
(b) Determine an approximate equal-tailed interval into which
the number of claims
per year will fall with probability 0.95.
(c) In practice 70 claims were received in a particular year. A
Director of the company
complains about the range of estimates in part (b) being
wrong.
Comment on the Director's complaint.