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Q15: Question – Paper 1 – November 2018
Q15: Question – Paper 1 – November 2018
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15)
In a survey, queuing times at supermarket checkouts were recorded.
One morning, samples of 50 customers were taken at supermarkets A, B, C and D.
The box plots represent the results.
15)
In a survey, queuing times at supermarket checkouts were recorded.
One morning, samples of 50 customers were taken at supermarkets A, B, C and D.
The box plots represent the results.
15 a) On average, which supermarket had the lowest queuing times?
Give a reason for your answer.
Supermarket:
Reason:
Give a reason for your answer.
Supermarket:
Reason:
[2 marks]
15 b) At which supermarket were the queuing times most consistent?
Give a reason for your answer.
Supermarket:
Reason:
[2 marks]