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son4ous [18]
3 years ago
12

Please help I need to do this now please thank you

Mathematics
1 answer:
wariber [46]3 years ago
7 0

Answer:

A  Irrational

Step-by-step explanation:

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When sample size increases:____.
sergij07 [2.7K]

Answer:

D. Confidence interval decreases.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

When sample size increases:

The standard deviation of the sample mean is:

s = \frac{\sigma}{\sqrt{n}}

That is, it is inversely proportional to the sample size, so if the sample size incerases, the standard deviation decreases, and so does the confidence interval.

This means that the correct answer is given by option D.

3 0
3 years ago
Mr. Flores charges $ 530 for car repairs to his credit card, which charges no interest if
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Answer:

$47.50

Step-by-step explanation:

530-150=380

380/8=47.50

5 0
3 years ago
If angle B = x°, what is the measure of a supplement of angle B
kozerog [31]

Answer:

Step-by-step explanation:

G

3 0
3 years ago
If $5000 was invested at a rate of 5%, how many years would it take to triple if it is compounded daily
maw [93]

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If your money earns a 5 percent interest rate, it will triple in 23 years (115 divided by 5 equals 23).

Step-by-step explanation:

3 0
3 years ago
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Kayden is buying bagels for a family gathering. Each bagel costs $1.50. Answer the questions below regarding the relationship be
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y= $1.50x

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Each bagel is $1.50,therefore for each family member(x) the amount increaes by the same rate

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3 years ago
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