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2.5 Data presentation and interpretation

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Question 17

A sports scientist expects resting pulse rate to decrease as weekly training time increases. For a random sample of 13 athletes, r=−0.604r=-0.604r=−0.604. The lower-tail critical values are -0.475 at 5% and -0.634 at 1%.

a.

Carry out the test at the 5% significance level.

[4]
b.

Explain why the evidence is not significant at the 1% level.

[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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