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
Professionals employed with this firm is between 14.62 and 15.78.
B) 95% of all firm's professional employees volunteer between 14.62 and 15.78 hours per
Month.
C) The number of hours per month volunteered by the firm's professional employees is
Between 14.62 and 15.78 95% of the time.
D) All of the above.
E) None of the above.

Question

Quizplus · Accepted Answer

The correct interpretation of the confidence interval is that we are 95% confident that the true average number of hours per month volunteered by the professionals employed with this firm is between 14.62 and 15.78. It does not imply that 95% of all employees volunteer between these hours or that the hours volunteered are between this range 95% of the time. Therefore, the correct answer is A.

A Large Software Development Firm Recently Relocated Its Facilities