20 hours. You find this by dividing 150 by 10 and then multiplying that by 2.
4 3/8 is what I believe to be the answer.<span />
3.25 hours you take 4680÷1440 = 3.25
Answer:
if you want a t*-value for a 90% confidence interval when you have 9 degrees of freedom, go to the bottom of the table, find the column for 90%, and intersect it with the row for df = 9. This gives you a t*–value of 1.833 (rounded).
Step-by-step explanation:
Hope this helps!
