Question: A company introduces a new sales training program with the claim that it improves the performance of its sales agents. A group of 12 sales

A company introduces a new sales training program with the claim that it improves the performance of its sales agents. A group of 12 sales agents participated in the program, and their sales performance before and after the program was measured. The data is presented below: a. ( (20 mathrm{pts}) ) Test the claim of the company using a significance level of 0.05 .

A company introduces a new sales training program with the claim that it improves the performance of its sales agents. A group of 12 sales agents participated in the program, and their sales performance before and after the program was measured. The data is presented below: Agent 1 Before 120 2 3 5 6 7 130 110 After 150 140 130 8 140 150 100 130 160 110 120 130 140 160 170 120 140 180 120 150 160 170 9 10 11 12 a. (20 pts) Test the claim of the company using a significance level of 0.05.

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