A customer service company wants to know if their support agents are performing on par with industry standards. According to a report the standard mean resolution time is 20 minutes per ticket. The sample group of 25 has a mean at 21 minutes per ticket with a standard deviation of 7 minutes. Can you tell if the company's support performance is on par with the industry standard using 0.05 significance level? What is the test statistic? (Answer in 2 decimal place) * What is the decision? * Reject the null hypothesis Fail to reject the null hypothesis What is the null hypothesis? * H. u > 20 Hi p> 21 Hi: 0< 20 He u« 20 H. u< 20 H. u# 21 H:: 0 > 21 Ha u + 20 Ho p = 21 Ho: G = 21 He: 0 = 20 H:u= 20 Ha p = 20 He u > 21 H: p= 21 O O

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