AtaAtara manages eight call centre operators at a telecommunications company. To develop new business, she gives each operator a list of randomly selected phone numbers of rival phone company customers. She also provides the operators with a script that tries to convince the customers to switch providers. Atara notices that some operators have found more than twice as many new customers as others, so she suspects that some of the operators are performing better than others.
The 120 new customer acquisitions are distributed as followsra manages eight call centre operators at a telecommunications company. To develop new business, she gives each operator a list of randomly selected phone numbers of rival phone company customers. She also provides the operators with a script that tries to convince the customers to switch providers. Atara notices that some operators have found more than twice as many new customers as others, so she suspects that some of the operators are performing better than others.
The 120 new customer acquisitions are distributed as follows:

QUESTION:

Is there evidence to suggest that some of the operators are more successful than others?

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Operator 1 2 3 4 5 6 7 8 New customers 11 17 9 12 19 18 13 21