Answer:
a) 
b) The should sample at least 293 small claims.
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 , which means that the answer of question a is z = 1.645.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?
They should sample at least n small claims, in which n is found when
. So
The should sample at least 293 small claims.
Answer:
The distance traveled by the B737-400 aircraft in 5 hours is 2,000 miles
Step-by-step explanation:
Average speed = 400 miles per hour
Distance = 400t
t= 5
Total distance = 400t at t hours
Total distance when t = 5 hours
Total distance traveled = 400t
= 400 × 5
= 2,000 miles
Total distance travelled = 2,000 miles
The distance traveled by the B737-400 aircraft in 5 hours is 2,000 miles
hope this helps
Answer:
12 
Step-by-step explanation:
8 divided by two-thirds of x is
⇒ 8/2/3 ×
⇒ 8 × (3/2)
⇒ 8×3 / 2
⇒ 24 / 2
∴ 12
