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4 years ago

There may be multiple answers here. please help

Mathematics

1 answer:

gogolik [260]4 years ago

6 0

I'm not positive I know the answer, but I have a feeling that because it's asking that you select all that apply, there is more than just one answer.

x + 3 = 0
-3 + 3 = 0

So yeah, just basically solve them as individual problems. Just do additive inverse for each expression.

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3 years ago

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The standard deviation of this sampling distribution of sample proportion is:

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The information provided is:

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p = 0.09

As the sample size is quite large, i.e. n = 596 > 30, the central limit theorem can be used to approximate the sampling distribution of sample proportion by a Normal distribution.

The mean and standard deviation are:

$\mu_{\hat p}=p=0.09\\\\\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.09(1-0.09)}{596}}=0.012$

Compute the probability that the sample proportion of airborne viruses in differ from the population proportion by greater than 3% as follows:

$P(\hat p-p>0.03)=P(\hat p>0.12)$

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Thus, the probability that the sample proportion of airborne viruses in differ from the population proportion by greater than 3% is 0.006.

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3 years ago