Mathematics (AS & A Level) · Feb / March 2022 · Paper 62 · Question 2
9709
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Harry has a five-sided spinner with sectors coloured blue, green, red, yellow and black. Harry thinks the spinner may be biased. He plans to carry out a hypothesis test with the following hypotheses. H0: Pthe spinner lands on blue = 1 5 H1: Pthe spinner lands on blue ≠1 5 Harry spins the spinner 300 times. It lands on blue on 45 spins. Use a suitable approximation to carry out Harry’s test at the 5% significance level. [5]
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