OCR Further Statistics AS 2022 June — Question 4

Exam BoardOCR
ModuleFurther Statistics AS (Further Statistics AS)
Year2022
SessionJune
TopicChi-squared distribution
4 A school pupil keeps a note of whether her journeys to school and from school are delayed. The results for a random sample of journeys are shown in the table.
\cline { 2 - 3 } \multicolumn{1}{c|}{}Direction of journey
\cline { 2 - 3 } \multicolumn{1}{c|}{}To schoolFrom school
Delayed6456
Not delayed74106
Test at the 10\% significance level whether there is association between delays and the direction of the journey.
This paper (7 questions)
View full paper
Q1 Q2 Q3 Q4 Q5 Q6 Q7