OCR MEI Paper 2 2020 November — Question 12

Exam BoardOCR MEI
ModulePaper 2 (Paper 2)
Year2020
SessionNovember
TopicHypothesis test of binomial distributions
TypePerform one-tailed hypothesis test

  1. Given that \(q < 2 p\), determine the values of \(p\) and \(q\).
  2. The spinner is spun 10 times. Calculate the probability that exactly one 5 is obtained. Elaine's teacher believes that the probability that the spinner shows a 1 is greater than 0.2 . The spinner is spun 100 times and gives a score of 1 on 28 occasions.
  3. Conduct a hypothesis test at the \(5 \%\) level to determine whether there is any evidence to suggest that the probability of obtaining a score of 1 is greater than 0.2 .