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IB Mathematics: Applications and Interpretation HL · 13.4: Hypothesis Testing · 13.4.21

Exam question practice Problem set A Answers

Skills

    1. (a) 0.115
    2. (b) 0.0132

  2. 0.0786

    1. (a) 265.2
    2. (b) 10.2

In context

    1. (a) H0: μ = 260, H1: μ > 260
    2. (b) \(\bar X > 264\)
    1. (a) 0.335

Stretch

    1. (a) 0.115
    2. (b) 0.0786
    3. (c) H0: μ = 260, H1: μ > 260
    4. (d) \(\bar X > 264\)
    5. (e) mean 265.2, standard deviation 10.2
    6. (f) 0.335

jmaths.xyz · AI HL · 13.4.21 Exam question: sums of normals, a test for a mean and Type II error