Turn over 21 Question 7 continued (d) Find the p‑value corresponding to Richard’s test value of 2.074 Explain whether, in this case, there is an advantage to using the p‑value rather than the critical region of the test. (2) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ In a further investigation, Richard noted that, during 44 weekdays in July and August, there were 8 days when at least one ‘morning rush’ train from Brighton was cancelled, but there were only 4 days when at least one ‘morning rush’ train from Southend‑on‑Sea was cancelled. (e) Does this investigation provide significant evidence that there are more likely to be days when at least one ‘morning rush’ train is cancelled from Brighton than from Southend‑on‑Sea? (6) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________