Answer:
a) n = 1037.
b) n = 1026.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence level of 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
The margin of error is:
99% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
(a) Assume that nothing is known about the percentage to be estimated.
We need to find n when M = 0.04.
We dont know the percentage to be estimated, so we use 
, which is when we are going to need the largest sample size.
Rounding up
n = 1037.
(b) Assume prior studies have shown that about 55% of full-time students earn bachelor's degrees in four years or less.
So
Rounding up
n = 1026.
When you know the coordinates of a point and the slope of a line, you can use the formula
in your case, 
and 
, so you have
Answer:
answer is -5
Step-by-step explanation:
Yea i agree LOL and meatballs are very very yuum e
Answer:
<em>10 feet</em>
Step-by-step explanation:
here's the reason ; -
let's take the missing side be x
we know, the one side of a triangle should always be greater than the difference between the other two sides, so ,
=》x > 7-4
=》x > 3
and the measure of a side should always be less than the some of the other two sides, hence
=》7 + 4 > x
=》11 > x
now, we have : -
11 > x > 3
value of x should be more than 3 and less than 11 , hence 2 ft , 3 ft and 12 ft can't be the measure of third side,
so, we got our third side as 10 ft
