Answer:
Question 1:
(b) 4,445
Question 2:
(c) 2.1%
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 of:
95% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Question 1:
We have no previous estimate for the population proportion, so we use 
.
The sample size is n for which M = 0.015. So
Samples above this value should be used, and the smaller sample above this value is of 4445, so the answer is given by option b.
Question 2:
Now we find M for which 
.
So 2.1%, and the correct answer is given by option c.
Explanation:
In this number line the solution set that's graphed is all numbers less than 1. It doesn't include 1 because that point is graphed with an empty circle.
Answer:
x < 1
Answer:
The lines are parallel.
Step-by-step explanation:
The first line is 
In slope-intercept form, this line has equation: 
The second line is 
In slope-intercept form, the line has equation: 
The slopes of the two lines are the same (m=1)
however, the y-intercepts of these lines are different (-1) and (+1) respectively.
The first choice is correct.
The two lines are parallel and hence will never intersect.
The rates are equivalent because both of them do 30 jumping jacks a minute.
Answer:
........................
Step-by-step explanation:
