Answer:
Step-by-step explanation: if u need helo go to DBHELPPOT on yiutubs
Answer:
The critical value is
Step-by-step explanation:
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 8 - 1 = 7
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 7 degrees of freedom(y-axis) and a confidence level of . So we have T = 1.415.
The critical value is
Answer:
B
Step-by-step explanation:
A radius is half of a diameter so multiply by 2