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2 Unit AS 2: Applied Mathematics

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Question 108

A sample product moment correlation coefficient is r=0.58r=0.58r=0.58. For a one-tailed test at the 5% significance level, the critical value is 0.6215 when n=9n=9n=9 and 0.5494 when n=12n=12n=12.

a.

State the conclusion if n=9n=9n=9.

[2]
b.

State the conclusion if n=12n=12n=12.

[2]
c.

Explain why the conclusions can differ although r r\,r is unchanged.

[2]
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2 Unit AS 2: Applied Mathematics Questions

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

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