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

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Question 230

A restaurant has previously found that 30% of customers order a starter. In a random sample of 40 customers, 7 order a starter. A test is carried out to determine whether the population proportion has decreased.

a.

State suitable hypotheses.

[2]
b.

Calculate the p-value.

[2]
c.

Complete the test at the 5% level of significance.

[2]
d.

Complete the test at the 10% level of significance.

[2]
Markscheme

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

  1. A Level
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