Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 62 · Question 6
9709
As printed in the paper
The question as text
A machine is supposed to produce random digits. Bob thinks that the machine is not fair and that the probability of it producing the digit 0 is less than 1 10. In order to test his suspicion he notes the number of times the digit 0 occurs in 30 digits produced by the machine. He carries out a test at the 10% significance level.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(a)[1]
6(b)[4]
6(c)[1]
6(d)[3]
6(e)[1]
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