Answer:
The 4-5
Step-by-step explanation:
Answer:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Step-by-step explanation:
For a confidence level given c, we can find the significance level like this:

And with the degrees of freedom given by:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Answer:
130
Step-by-step explanation:
So you have 780 and 6 right? So, you put 780 in the division box and 6 right outside. Divide and you will get 130, unless you make a mistake.
Answer:
I'm pretty sure its 2.9 hours
Step-by-step explanation:
hope this helps