Compare the 95%(6.214,7.686) and 99% 95.944,7.956)confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs.
Instead of 95.944,7.956), did you intend to type
(5.944,7.956)?
It makes more sense.
Supposedly, 99% of the students sleep more than 5.944 but less than 7.956 hours. That is what is meant by a 99% confidence interval.