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Question 9:

A professional employee in a large corporation receives an average ofe-mails per day. Most of these e-mails are from other employees in the company. Because of the large number of e-mails, employees find themselves distracted and are unable to concentrate when they return to their tasks. In an effort to reduce distraction caused by such interruptions, one company established a priority list that all employees were to use before sending an e-mail. One month after the new priority list was put into place, a random sample of 31 employees showed that they were receiving an average ofe-mails per day. The computer server through which the e-mails are routed showed that. Use a 5% level of significance to test the claim that there has been a change (either way) in the average number of e-mails received per day per employee. What is the level of significance?

Select one:

a.= 0.05

b.= 0.15

c.= 0.95

d.= 0.90

e.= 0.98