Mathematics: The probability of winning a prize from a scratch off card is 60%. a sample of 30 cards is taken. what is the standard error of the proportion, rounded to the nearest thousandth?

The probability of winning a prize from a scratch

TOLLYOISTHIS2774

11.01.2022

The standard error of the proportion is

E=0.089

Step-by-step explanation:

Assuming that the size of population N is large enough, and with a sample n = 30 , so that:

$\frac{n}{N}\leq0.05$ then the standard error of the proportion is:

$E = \sqrt{\frac{p(1-p)}{n}}$

Where

$n = 30\\\\p= 0.6\\\\E = \sqrt{\frac{0.6(1-0.6)}{30}}\\\\E =\sqrt{\frac{0.6(0.4)}{30}}\\\\E=\frac{\sqrt{5}}{25}=0.089$

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aesthvx44

13.05.2020

yes

Step-by-step explanation: i hate life

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