Skip to content

Course home

2.5 Statistical Hypothesis Testing

2.5 Statistical Hypothesis Testing

EasyMediumHard
123456789101112131415
Question 10

An atmospheric scientist records the relationship between the altitude hhh (in km) and the air temperature TTT (in ∘C{}^\circ\text{C}∘C) above a fixed ground location. The resulting scatter graph shows that as altitude increases, the temperature decreases consistently. The data points are positioned extremely close to a straight line of best fit, with almost no visible deviation from the linear path.

Which of the options below best describes the correlation between hhh and TTT?

  • moderate positive

  • strong positive

  • moderate negative

  • strong negative

Scatter graph of air temperature against altitude, showing a strong negative correlation with points very close to a descending straight-line pattern.

[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.

Question bank