Answer:
The answer is 20 hours
Step-by-step explanation:
20x60=1200
1200÷60=20
Slope = (-3 - (-15))/(-9 - (-5)) = - 12/4 = -3
Answer:
The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.
Step-by-step explanation:
A confidence interval has the following format.

In which
is the mean of the sample and M is the margin of error.
In this problem, we have that:



The 99% confidence interval for the mean number of hours of part-time work per week for all college students is between 25.8 and 30.2.