Answer:
You must test a sample size of at least 514 Americans.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of 
.
is the margin of error.
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
We have that:
So
You must test a sample size of at least 514 Americans.
Answer:
x = 3.5 is not a solution
Step-by-step explanation:
3x +2 < 12
Subtract 2 from each side
3x +2-2 < 12-2
3x< 10
Divide each side by 3
3x/3 <10/3
x < 10/3
x <3.3333333
Any number greater than 3.3333 is not a solutions
3.5 is not a solution
Answer:
B
Step-by-step explanation:
because the answer matches the equation
Answer: B
Step-by-step explanation:
Idk just an educated guess prolly b, i know its not A or D so guess between b and c
The correct answer would be 2,656.25 because you take the 8.5% and move the decimal 2 places to the left.
Now multiply the total (250,000) by .085% and you get $21,250
You will now take 21,250 and divide it by 8 giving you the answer.
