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2.5.7 Hypothesis test using Pearson's coefficient (A-level only)

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Question 5

Leo is investigating whether there is a correlation between the daily mean windspeed and the daily maximum gust in a particular coastal town.

a.

Suggest a suitable null and alternative hypothesis for a two-tail test.

[2]
b.

Leo takes a sample of 18 days and finds a product moment correlation coefficient of 0.51.

Carry out the hypothesis test at the 5% significance level.

[2]

2.5.7 Hypothesis test using Pearson's coefficient (A-level only) Questions

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