Answer:
I think it should be the 1st one
Step-by-step explanation:
sorry if it is wrong hope it helps
Answer:
8 years.
Step-by-step explanation:
The simple interest formula is principal × rate (as a decimal) × time = interest. In this question, you want to find the time.
First, plug in your numbers. 350 × .055 × t = 154. Then, to find t, divide to get t one side.
t = 154 / 350 × .055
Then solve.
350 × .055 is 19.25. 154 / 19.25 is 8.
So, your answer is 8 years.
154/350*.055 = t
Answer:
a lot
Step-by-step explanation:
Answer: The sample mean salary of our sampled business majors= 60k .
Step-by-step explanation:
We know that a confidence interval is give by :_
(i)
, where
= Sample mean
E = margin of error
Given : A 95% confidence interval for the true mean salary of graduating business majors: (50k, 70k).
As compared to (1) , we have

Add (1) and (2) , we get

∴ The sample mean salary of our sampled business majors= 60k .