Question: (pg. 352) Reports from a new system set up to monitor Internet use by company employees indicate that 145 out of a random sample of 1100 employees at a corporation accessed Interne sites that were clearly not related to their jobs over the last week. On average, employees who accessed non-job related sites spent 4.8 hours per week at such sites with a standard deviation of 2.1 hours.

1. Give a 95% confidence interval for the percentage of employees at the corporation who access non-job related sites.
2. Briefly explain in one short sentence how to interpret this interval.
3. Statistics show that about 10% of people nationwide access non-job related sites at work. Is this company really any different from the national statistics?
4. Can we say that roughly 95% of people at this company spent in the range of 4.8 hours plus or minus 4.2 hours on non-related web sites?

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document