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klio [65]
3 years ago
10

"Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political

news was reported fairly. The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly. Suppose we want to construct a 95% confidence interval. What is the standard error for the confidence interval?"
Mathematics
1 answer:
melomori [17]3 years ago
6 0

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

Sample size : n= 1000

Sample proportion: \hat{p}=\dfrac{470}{1000}=0.47

The standard error for proportion is given by :-

S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}

S.E.=\sqrt{0.0002491}

S.E.=0.0157829021412\approx0.0158

[Rounded to the nearest four decimal places.]

Hence, the standard error for the confidence interval = 0.0158

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The equation of the plane that goes through these points is:

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<h3>How to find the equation of a plane given three points?</h3>

The equation of the plane is found replacing the points into the following equation:

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For point A, we have that:

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Hence the system is:

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z = -6x - 2y + 10

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More can be learned about the equation of a plane at brainly.com/question/13854649

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