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steposvetlana [31]
3 years ago
7

Pls help I need it badly ​

Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

3.6

Step-by-step explanation:

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How does the sample size affect the validity of an empirical​ argument? A. The larger the sample size the better. B. The smaller
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Answer:

A. The larger the sample size the better.

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}}

In this question:

We have to look at the standard error, which is:

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

This means that an increase in the sample size reduces the standard error, and thus, the larger the sample size the better, and the correct answer is given by option a.

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3 years ago
Find the roots. Answer the question below.
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Step-by-step explanation:

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List the variables and constants in each expression.<br><br> 3x+6
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How much change will you get back from a quarter if you buy 2 ten-cent candies?
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3 0
3 years ago
Read 2 more answers
Pleaseee helpppp :((((
IrinaVladis [17]
The answer is x < 9 because
x-4<5
+ 4 +4
x<9
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