Help me guys hereNonSense Answer=Report

Mathematics

1 answer:

Anarel [89]3 years ago

3 0

Just put the numbers in the calculator, write them down and then compare what integers are between the given numbers

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Cate zile sunt in 5 saptamani

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1 week = 7 days

5 weeks = 5x7 = 35 days

1 săptămână = 7 zile

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3 years ago

Movie trailers are designed to attract large audiences. However. according to a recent survey, 32°A of Americans believe movie t

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Answer:

The probability that the sample proportion is more than 0.35 believe movie trailers reveal too much is 0.1539.

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

$\mu_{\hat p}=p$

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

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

The information provided is:

p = 0.32

n = 250

Since the sample size is quite large, i.e. n = 250 > 30, the central limit theorem can be used to approximate the sampling distribution of sample proportion by a Normal distribution.

Compute the probability that the sample proportion is more than 0.35 believe movie trailers reveal too much as follows:

$P(\hat p>0.35)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}}>\frac{0.35-0.32}{\sqrt{\frac{0.32(1-0.32)}{250}}})$