Using the z-distribution, it is found that the smallest sample size required is given by:
B) 7 vehicles.
<h3>What is the margin of error for a z-distribution confidence interval?</h3>
It is given by:
In which:
is the population standard deviation.
In this problem, we have a 90% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 1.645.
The margin of error and the population standard deviation are given by, respectively:
.
Then, we solve for n to find the needed sample size.
Rounding up, 7 vehicles have to be sampled, hence option B is correct.
More can be learned about the z-distribution at brainly.com/question/25890103
I think it’s D I’m not sure
Answer:
No it dose not. Hope this helped!
Step-by-step explanation:
Answer:
The Spiral of Theodorus is a construction of continuous right triangles, and each triangle has a side length of one representing the of the Pythagorean theorem, with the other sides filling in the spaces for the and in the theorem. hope that helped :)
Step-by-step explanation:
Answer:
$151.73
Step-by-step explanation:
No doubt you were given a formula for computing the payment in this situation. You have not provided it here, so we have chosen to use "technology" to find the payment value. A financial calculator or app, or a spreadsheet program can do this computation for you.
_____
We believe the applicable formula to be ...
A = P·(r/12)/(1 -(1 +r/12)^(-18)) . . . . . where r is the annual interest rate; P is the starting balance, and 18 is the number of months over which payments will occur.
Filling in P=2513.77 and r=0.1066, this expression evaluates to ...
A = 2513.77·(.1066/12)/(1 -(1+.1066/12)^-18) ≈ 151.73472 ≈ 151.73
