Using the z-distribution, it is found that a sample size of 3,385 is required.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:
The margin of error is:
In which:
is the sample proportion.
In this problem, we have a 98% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 2.327.
We have no prior estimate, hence 
is used, which is when the largest sample size is needed. To find the sample size, we solve the margin of error expression for n when M = 0.02, hence:
n = 3,385.
A sample size of 3,385 is required.
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
Third one
Step-by-step explanation:
;b
<h2>Answer</h2>
<h2>Explanation </h2>
First we are going to find the equation of the solid line passing trough the points (0, 3) and (2, 4).
Using the slope formula:
Now we can use the point slope formula to complete the line equation:
Since the shaded region is bellow the line , the inequality represented in the graph is .
Answer:
k = 2/-3
Step-by-step explanation:
y = kx
Point: (-3, 2)
2 = k(-3)
k = 2/-3
k = -0.6
