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2.5 Statistical Hypothesis Testing

2.5 Statistical Hypothesis Testing

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Question 192

A football coach records the heights h h\,h cm and masses w w\,w kg of 12 players.

Height (cm): 188, 194, 178, 175, 185, 175, 188, 193, 180, 190, 181, 169 Mass (kg): 70, 100, 83, 69, 77, 58, 90, 86, 71, 94, 68, 61

a.

Draw a scatter diagram for the data.

[2]
b.

Describe the association. The regression line of w w\,w on h h\,h is w=1.37h−173w=1.37h-173w=1.37h−173.

[1]
c.

Interpret the gradient.

[1]
d.

Use the model to estimate the mass of a player of height 184 cm.

[1]
Markscheme

2.5 Statistical Hypothesis Testing Questions

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

355 exam-style questions on OCR (MEI) A Level Maths 2.5 Statistical Hypothesis Testing, covering 2.5.1 Process and language of hypothesis testing, 2.5.2 When to apply 1-tail and 2-tail tests, 2.5.3 Significance level and incorrect rejection, 2.5.4 Null and alternative hypotheses (binomial), 2.5.5 Conduct a binomial hypothesis test, 2.5.6 Critical and acceptance regions (binomial), 2.5.7 Distribution of the sample mean (A-level only), 2.5.8 Hypothesis test for a single mean (A-level only), 2.5.9 Critical and acceptance regions (mean) (A-level only), 2.5.10 Correlation as closeness to a straight line (A-level only), 2.5.11 Inference using a correlation coefficient (A-level only), and 2.5 Statistical Hypothesis Testing. Each one has a worked solution and a mark scheme showing where the marks go.

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