- Thread starter
- #26

- Apr 14, 2013

- 4,004

Applying thesame methodas before I get that the confidence interval for the case of 30 hours is $[2.130030132, \ 6.498790828]$.I guess so, assuming your previous approach was correct which seems plausible.

By greater it is meant larger values not bigger width, right?Determine the confidence interval for the average weight in pounds for a child who watches television for $36$ hours a week and for a child who watches television for $30$ hours a week. Which confidence interval is greater and why?

If yes, the greater confidence interval is the first one, for the case of 36 hours. How do we justify that?