3 years ago

Does anybody know how to do this? Problem 13

Mathematics

1 answer:

inessss [21]3 years ago

4 0

Subtract 6 from the x value in the first one, and remember that slope intercept form is mx+b

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Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

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We have to find the margin of error associated with a 90% Confidence interval.

Formula for margin of error:

$z_{stat}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.10} = 1.64$

Putting the values, we get:

$M.E = 1.64\times (\sqrt{\dfrac{0.89(1-0.89)}{1024}})\\\\M.E=0.016$

Thus, the margin of error for the survey is 0.016

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