Question

I have a multiple choice question.

Statistics

A professional employee in a large corporation receives an average of μ-42.7 e-mails per day. 6. 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 44 employees showed that they were receiving an average ofx 35.6 e-mails per day. The computer server through which the e-mails are routed showed that ơ-15.3 Has the new policy had any effect? Use a 10% level of significance 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? A) a 0.30 Β) α-0.20 C) α-0.90 D) a- 0.10 E) a 0.9

Answer 1

Solution :

Given that,

Level of significance = $\alpha$ = 10% = 0.10

$\alpha$ = 0.10

Option D) is correct .