Answer:
You should select at least 216 statistics professors.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
In this problem, we have that:
You should select at least 216 statistics teachers.
If you get 22 miles for 2.80 and you need 360 miles
22\360=?•2.80
22/360=16.3
2.80 • 16.3 = 45.6$
So it would cost 45.6$ to drive 360 miles
It would be what is 20% of 70. x = 20/100 x 70 = 14
20% of 70 is 14
Answer:
$4040.57
Step-by-step explanation:
A=P(1+(r/n))^nt
P = Principal = 3000
r = rate = 0.03
n = no. times payed each year = 2
t = years = 10
A = 3000(1 + (0.03/2))^(2x10)
A = 3000(1.015)^20
A = 4040.57 (2.d.p)
Hope this helped!