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

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Question 116

A delivery company claims that 85% of its parcels arrive by the promised date. A customer group believes that the true proportion is lower. Of a random sample of 25 parcels, 18 arrive by the promised date.

a.

State suitable hypotheses.

[2]
b.

Calculate the p-value.

[2]
c.

Complete the test at the 5% level of significance.

[1]
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4 Unit A2 2: Applied Mathematics (A-level only) Questions

  1. A Level
  2. /Maths
  3. /4 Unit A2 2: Applied Mathematics (A-level only)

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