Answer: 29.1
Step-by-step explanation: You would multiply 15$ by .94 which is the same as 94% and get 14.1. You would then add the 14.1 to the 15$ and get 29.1$.
X=2
its x=2 because you have to divide -20x by -40 so the two negatives cancel out each other and then you get 2.
Answer: 803.84 --> 803.8
Step-by-step explanation:
4^4=16x3.14=50.24*16=803.84
Given the sample mean is
and population standard deviation is
.
Now the standard deviation of the sample mean is 
The
confidence interval for population mean is
.
Here 
The 90% CI for population mean is

Answer:
Step-by-step explanation: