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2.5 Data presentation and interpretation

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Question 6

A sports coach investigates the relationship between an athlete's reaction time and time to run 100 metres. For a random sample of 18 athletes, r=0.5217r=0.5217r=0.5217. For a two-tailed test at the 5% level, the critical values are ±0.4683\pm0.4683±0.4683.

a.

State the null and alternative hypotheses.

[2]
b.

State the acceptance region for rrr.

[1]
c.

Complete the hypothesis test.

[2]
Markscheme

2.5 Data presentation and interpretation Questions

  1. A Level
  2. /Maths
  3. /2.5 Data presentation and interpretation

278 exam-style questions on CCEA A Level Maths 2.5 Data presentation and interpretation, covering 2.5.1 Data presentation and interpretation, 2.5.2 Data presentation and interpretation, 2.5.3 Data presentation and interpretation, 2.5.4 Data presentation and interpretation, 2.5.5 Data presentation and interpretation, 2.5.6 Data presentation and interpretation, 2.5.7 Data presentation and interpretation, 2.5.8 Data presentation and interpretation, 2.5.9 Data presentation and interpretation, and 2.5 Data presentation and interpretation. Each one has a worked solution and a mark scheme showing where the marks go.

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