AQA S2 2006 June — Question 2

Exam BoardAQA
ModuleS2 (Statistics 2)
Year2006
SessionJune
TopicHypothesis test of a normal distribution

2 The weights of lions kept in captivity at Wildcat Safari Park are normally distributed.
The weights, in kilograms, of a random sample of five lions were recorded as $$\begin{array} { l l l l l } 46 & 48 & 57 & 49 & 54 \end{array}$$
  1. Construct a 95\% confidence interval for the mean weight of lions kept in captivity at Wildcat Safari Park.
  2. State the probability that this confidence interval does not contain the mean weight of lions kept in captivity at Wildcat Safari Park.