CAIE S2 2017 March — Question 1

Exam BoardCAIE
ModuleS2 (Statistics 2)
Year2017
SessionMarch
TopicHypothesis test of a normal distribution

1 In a survey, 36 out of 120 randomly selected voters in Hungton said that if there were an election next week they would vote for the Alpha party. Calculate an approximate \(90 \%\) confidence interval for the proportion of voters in Hungton who would vote for the Alpha party.