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2.5 Statistical Hypothesis Testing

2.5 Statistical Hypothesis Testing

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Question 35

The age and the market value of 12 second-hand cars are recorded.

a.

Suggest a null and alternative hypothesis for a two tailed test to investigate whether there is a correlation between the age of a car and its market value.

[2]
b.

The product moment correlation coefficient is calculated to be r=−0.68r = -0.68r=−0.68.

Test your hypotheses at the 1% significance level.

[2]
Markscheme

2.5 Statistical Hypothesis Testing Questions

  1. A Level
  2. /Maths
  3. /2.5 Statistical Hypothesis Testing

316 exam-style questions on OCR A Level Maths 2.5 Statistical Hypothesis Testing, covering 2.5.1 The language of hypothesis testing, 2.5.2 Hypothesis test for a binomial proportion, 2.5.3 Inference and significance level, 2.5.4 Sample mean as a random variable (A-level only), 2.5.5 Hypothesis test for the mean of a normal distribution (A-level only), 2.5.6 Pearson's product-moment correlation coefficient, and 2.5.7 Hypothesis test using Pearson's coefficient (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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