Edexcel S2 2014 June — Question 1

Exam BoardEdexcel
ModuleS2 (Statistics 2)
Year2014
SessionJune
TopicApproximating the Binomial to the Poisson distribution
TypeState conditions for Poisson approximation

  1. (a) State the conditions under which the Poisson distribution may be used as an approximation to the binomial distribution.
A farmer supplies a bakery with eggs. The manager of the bakery claims that the proportion of eggs having a double yolk is 0.009 The farmer claims that the proportion of his eggs having a double yolk is more than 0.009
(b) State suitable hypotheses for testing these claims. In a batch of 500 eggs the baker records 9 eggs with a double yolk.
(c) Using a suitable approximation, test at the \(5 \%\) level of significance whether or not this supports the farmer's claim.