The average time in hours that a customer spends in the store is given as: 1.167 hours
From available data, the number of people that visited the store = 4200
Number of customer that is in the store = 350
The number of hours that the store is open = 14 hours
The hour rate = 4200/14
= 300 customers per hour
The average time that the customer spends = customer in store / rate
= 350/300
= 1.167 hours This is approximately 70 minutes
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