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2 Statistics

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Question 16

For X∼B(30,0.5)X\sim B(30,0.5)X∼B(30,0.5), a two-tailed test uses 2.5% in each tail.

a.

Show that the critical region is X≤9 X\leq9\,X≤9 or X≥21X\geq21X≥21.

[4]
b.

Find the actual significance level.

[2]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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