OCR Further Statistics AS 2018 June — Question 8

Exam BoardOCR
ModuleFurther Statistics AS (Further Statistics AS)
Year2018
SessionJune
TopicChi-squared distribution
8 The table shows the results of a random sample drawn from a population which is thought to have the distribution \(\mathrm { U } ( 20 )\).
Range\(1 \leqslant x \leqslant 8\)\(9 \leqslant x \leqslant 12\)\(13 \leqslant x \leqslant 20\)
Observed frequency12\(y\)\(28 - y\)
Find the range of values of \(y\) for which the data are not consistent with the distribution at the \(5 \%\) significance level. \section*{END OF QUESTION PAPER}
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