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Edexcel A-Level Mathematics A2 S3.3.7 Hypothesis Test for the Difference Questions

Practise hypothesis tests for the difference between two Normal means with known variances, using standard errors, z statistics and critical values from verified Edexcel IAL evidence.

Syllabus
First assessment 2019
Course
Mathematics YMA01
Level
A2

Exam points

  • set hypotheses for the difference between two Normal means with known variances
  • calculate the standard error and z statistic for x̄−ȳ
  • compare z with the two-tailed critical value and conclude in context

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