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2 Unit AS 2: Applied Mathematics

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Question 75

A two-tailed test of $H_0: ho=0iscarriedoutusing22pairedobservations.Theobservedvalueisis carried out using 22 paired observations. The observed value isiscarriedoutusing22pairedobservations.Theobservedvalueisr=-0.515$. The two-tailed p-value is 0.0142.

a.

Complete the test at the 2% significance level.

[3]
b.

Without further calculation, state the conclusion at the 1% significance level.

[2]
c.

Explain why replacing the alternative hypothesis by $H_1: ho<0,$ after seeing the data would be inappropriate.

[2]
Markscheme

2 Unit AS 2: Applied Mathematics Questions

  1. A Level
  2. /Maths
  3. /2 Unit AS 2: Applied Mathematics

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