Answer:
99%, because as the level of confidence increases, Zc increases.
Step-by-step explanation:
You want to find the time <em>t</em> such that

Divide both sides by $200 :

Take the logarithm of both sides:

Divide both sides by 0.04 and solve for <em>t</em> :

Answer:
x=7
z=79
Step-by-step explanation:
13x+10=101
13x=91
x=7
180-101=79
Answer:
x = 14
Step-by-step explanation:
