A large software development firm recently relocated its facilities.Top management is interested in fostering good relations with their new local community and has encouraged
Their professional employees to engage in local service activities.They wish to
Determine the average number of hours the firm's professionals volunteer per month.
They find the 95% confidence interval of 14.62 to 15.78.Which of the following is the
Correct interpretation?
A)We are 95% confident that the average number of hours per month volunteered by
B)95% of all firm's professional employees volunteer between 14.62 and 15.78 hours per
C)The number of hours per month volunteered by the firm's professional employees is
D)All of the above.
E)None of the above.

Question

Quizplus · Accepted Answer

The correct interpretation is that we are 95% confident that the average number of hours per month volunteered by the firm's professional employees is between 14.62 and 15.78. Option B is incorrect because we cannot generalize the confidence interval to all professional employees of the company. Option C is also incorrect because we do not know the exact number of hours volunteered by each employee, only the average across the sample.

A Large Software Development Firm Recently Relocated Its Facilities