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STAT4002 It was claimed that 60% of people wanted a regulation to ban mobile phone usage on public transport: foundation maths Course Work, UO, UK

Question 4 
It was claimed that 60% of people wanted a regulation to ban mobile phone usage on public transport. 84 people, as far as possible selected randomly from the population, were asked if they supported this proposed rule. 39 were in agreement.
a) Construct a 99% confidence interval for the proportion of people wanting to change the law.
b) Does your confidence interval support the claim? Explain your answer.

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