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4 Unit A2 2: Applied Mathematics (A-level only)

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Question 241

For a particular die, the probability of rolling a 6 is claimed to be 0.40. Polly suspects that this probability is not 0.40. She will roll the die 20 times and let X X\,X be the number of sixes.

a.

State suitable hypotheses.

[2]
b.

Find the critical region for a two-tailed test at the 10% level of significance, using a probability of less than 0.05 in each tail.

[3]
c.

Find the actual significance level of the test.

[1]
d.

Polly obtains 11 sixes. Complete the test.

[2]
Markscheme

4 Unit A2 2: Applied Mathematics (A-level only) Questions

  1. A Level
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